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Asbestos Exposure and Mesothelioma in Pennsylvania

Expert Fact Checked

This page was legally reviewed by Jennifer Lucarelli. For information on our content creation and review process read our editorial guidelines. If you notice an error or have comments or questions on our content please contact us.

Jennifer Lucarelli Lawyer and Legal Advisor

If you have worked and lived in Pennsylvania for a significant amount of time, there is a chance that you were exposed to asbestos at home or in the workplace. Prolonged exposure to asbestos can lead to serious health problems including malignant mesothelioma and asbestos-related lung cancer. As a service to people who live in Pennsylvania, we have compiled the following information about asbestos and mesothelioma in Pennsylvania.


01. Statistics

Asbestos and Mesothelioma Statistics in Pennsylvania

  • From 1999-2015, approximately 2,779 Pennsylvania residents died from mesothelioma
  • Pennsylvania has the second-highest mesothelioma death rate in the country at 13 people per million (Source: CDC)
  • At least 41 asbestos deposits or mines have been catalogued in Pennsylvania (Source: USGS)
  • The highest mesothelioma death rates occur in the metropolitan areas surrounding Philadelphia and Pittsburgh (Source: Journal of the American Medical Association)
02. Asbestos in Workplaces

Asbestos Use Across Pennsylvania Industries

Western Pennsylvania is a critical part of the Rust Belt, notable particularly for steel production in Pittsburgh, while the Philadelphia area was home to textile, locomotive, and shipping industries, among others.

Shipbuilding:

Although it does not have much coastline, the Commonwealth of Pennsylvania makes the most out of what it has. As one of the largest cities in the country and a major commercial center since it was founded, Philadelphia has access to the Atlantic Ocean through the Delaware River, making it a natural spot for shipbuilding companies to form, such as William Cramp and Sons, the Philadelphia Naval Shipyard, and Hog Island Shipyard. Other cities had their own shipyards as well, such as the Pittsburgh Steamship Company in Pittsburgh, which has plenty of river access.

Steel:

Pittsburgh is known as the Steel City, and for good reason, given that the steel industry fueled the city’s economic growth for much of the 20th century. Steelmaking involves the use of tremendous heat and flame at very high temperatures, and asbestos was used to protect both workers and equipment from being harmed by the extreme heat. Some of the steel mills and foundries that employed asbestos include the Aliquippa Steel Company, National Steel Company, the Pittsburgh Steel Foundry, and the Bethlehem Steel Mill.

Locomotives:

During the height of the railroad expansion, Erie, PA, became a prominent city along the Rust Belt where locomotives were built. Companies like General Electric Transportation Systems and Pennsylvania Railroad produced their powerful engines, at the same time exposing many of the people involved in the labor-intensive work to the dangers of asbestos, which was used in both the locomotives themselves as well as the machines used to create them.

Vermiculite:

Although thousands of miles away from the vermiculite mines in Libby, Montana, Pennsylvania still had to deal with the problem of asbestos that contaminated those materials. In particular, from 1948 until 1993, the W.R. Grace Corporation shipped almost 425,000 tons of vermiculite ore from Libby to its processing plant in New Castle, PA, where it was converted into insulation and gardening products. Similar processing operations were located in Philadelphia, Lancaster, and seven other Pennsylvania towns.

03. Superfund Sites

Pennsylvania Shipyards and Superfund Sites

Pennsylvania’s access to the Atlantic Ocean is primarily through the Delaware River in Philadelphia; however, in the northwestern part of the state, there is a patch of shoreline along the Erie Canal, giving the state access to the Great Lakes.

Sun Shipbuilding & Drydock Company (Penn Shipbuilding)

Located in Chester, PA, about 15 miles south of Philadelphia on the Delaware River, the Penn Shipbuilding facility was built in 1917. For most of its operating period, the site served the oil and gas industry, and at one time was ranked as the largest shipyard in the U.S., producing about 40% of the tanker vessels used by the U.S. Navy during World War II. After the war, the shipyard continued building and repairing midsize and large ships, until it shut down in the late 1980s. Throughout most of that time, asbestos was used heavily in marine vessels, especially those used by the oil and gas industry, given the risk of shipboard fire.

Philadelphia Naval Yard

Possibly the oldest shipyard in the country, the Philadelphia Naval Shipyard opened in 1801. However, it wasn’t until the first World War that the yard’s operations expanded significantly to include a dry dock, chemical laboratory, barracks, hammerhead crane, and even a POW camp for German ship crews. The shipyard expanded again during World War II, during which it constructed a number of aircraft carriers, battleships, and destroyers for the U.S. Navy. While the shipyard continued into the 1990s, it eventually shut down after completing work on its capstone ship, the USS Kennedy.

Ambler Superfund Site

One of the sites to which W.R. Grace sent its vermiculite contaminated with asbestos was a facility in Ambler, PA, located about 16 miles north of Philadelphia. Because of its handling of these materials, the Ambler site became known as the “asbestos-manufacturing capital of the world,” and the town itself was called “the town that asbestos built.” The EPA added the Ambler Asbestos Superfund Site to its list in 1986, later adding the nearby landfill at the BoRit Asbestos Site (also in Ambler) to the list as well.

04. Exposure in Cities

Pennsylvania Cities with Known Asbestos Exposure

Learn more about asbestos exposure in the major towns and cities of Pennsylvania by clicking on the links below. If you worked at any of the jobsites highlighted on these pages, there is a possibility that you may have been exposed to asbestos which is known to cause the terminal cancer mesothelioma.

05. Other Work Sites

Asbestos Risks at Other Pennsylvania Work Sites

Workplace asbestos exposure is also a concern if one looks beyond the major cities and towns in Pennsylvania. Select a town below to see the list of its job sites known to have exposed workers to asbestos. Asbestos exposure at any one of the job sites revealed could have placed a worker at risk to develop mesothelioma cancer and other asbestos-related diseases.

Pennsylvania Directory of Asbestos Work Sites

Select a city to see a list of work sites where asbestos exposure occurred.

, Pennsylvania Jobsites Where Asbestos Exposure Occurred

  • A and P Roberts Company
  • A J Haws and Sons Ltd
  • A T & T
  • A T & T
  • A. & S. Wilson Company
  • A. Barletta & Sons
  • A. French Spring Company
  • A. Garrison Foundry Company
  • A. J. Cameron Company
  • A. Moe and Company
  • A. Pardee and Company
  • A.E. Staley Manufacturing Company
  • A.G. Vento Plumbing Company
  • A.H. Wirz Inc.
  • A.I.W. Frank Corp
  • A.K. Garrett Company
  • A.M. Byers & Company, Inc.
  • A.M. Byers Company
  • A.P. Green Fire Brick Company
  • A.P. Green Fire Brick Company
  • A.P. Green Industries
  • A.P. Green Refractory Company
  • A.Y. Michie & Sons
  • A&S Wilson Company
  • ABARTA Coca-Cola Beverages
  • Academy of Music
  • Ace Motor Company
  • Achenbach & Butler, Inc.
  • Acme Hardesty Industries
  • Acme Heat Treating Co
  • Acme Iron & Metal Company
  • Acme Markets
  • ACME Markets Warehouse
  • Acme Tea Company
  • Acme Warehouse
  • Acousticraft, Incorporated
  • Ada Lewis Junior High School
  • Adams Mine
  • Adelta Manufacturing Company, Inc.
  • Adley Express Company
  • Adrian Furnace
  • Advanced Specialty Company
  • Aetna Chemical Company
  • Aetna Standard
  • Air Production Sales
  • Air Products & Chemicals, Inc.
  • Air Products & Chemicals, Inc.
  • Air Reduction Plant
  • Air Reduction Sales Company
  • Air Reduction Sales Company
  • Air Reduction Sales Company
  • Airmaster, Inc.
  • Ajax Metals Company
  • AK Steel
  • Alamogordo Lumber Company (ALCo)
  • Alan Wood Iron and Steel Company
  • Alan Wood Iron and Steel Company
  • Alan Wood Steel
  • Alan Wood Steel Company
  • Alan Wood Steel Company
  • Albright Coal Company
  • Albright College
  • Alcoa
  • Alcoa
  • Alcoa Corporation (Aluminum Company of America)
  • Alcoa Research Laboratories
  • Alex Crow and Son
  • Alexander D. Goode Elementary School
  • Alexander Plumbing Company
  • Algonquin Coal Company
  • Aliquippa and Southern R.R.
  • Aliquippa High School
  • Aliquippa Junior High School
  • Aliquippa Steel Company
  • Aliquippa Works
  • Aliquippa Works
  • Alleghany Power Company
  • Allegheny By Product Coke Company
  • Allegheny Chemical
  • Allegheny City Electric, Inc.
  • Allegheny College
  • Allegheny County Airport
  • Allegheny County Department of Human Services (DHS)
  • Allegheny County Light Company (ACLC)
  • Allegheny County Parks Department
  • Allegheny County Steam Heating Company
  • Allegheny County Workhouse and Inebriate Asylum at Claremont
  • Allegheny Energy
  • Allegheny Energy Supply Company
  • Allegheny Energy Supply Company
  • Allegheny Energy Supply Company
  • Allegheny Energy Supply Company
  • Allegheny Furnace
  • Allegheny Gas Company
  • Allegheny General Hospital (AGH)
  • Allegheny High School
  • Allegheny Ludlum Steel Corporation
  • Allegheny Ludlum Steel Div
  • Allegheny Power System
  • Allegheny Refining Company
  • Allegheny Steam Heating Company
  • Allegheny Valley Railway (AVR)
  • Allegheny Valley Street Railway Company
  • Allegheny Valley Water Company
  • Allen Laundry
  • Allen Products Company, Inc.
  • Allentown Central Catholic School
  • Allentown High School
  • Allentown Hospital
  • Allentown Kutztown Traction Company
  • Allentown Portland Cement Company
  • Allentown Rapid Service Company
  • Allentown State Hospital
  • Allentown Water Company
  • Allentown-Bethlehem Gas Company
  • Allenwood Steel
  • Allenwood Steel
  • Allied Chemical & Dye Corporation
  • Allied Chemical & Dye Corporation
  • Allied Chemical Corp
  • Allied Chemical Corporation
  • Allied Chemical Corporation
  • Allied Chemical Corporation – Baker & Adamson Plant
  • Allied Services Developmental Services
  • AlliedSignal, Inc.
  • Allis-Chalmers Manufacturing Company
  • Alloy Rod Plant
  • Alon Engineering Inc
  • Alpha Portland Cement Company
  • Alpha Portland Cement Company
  • Alpha Portland Cement Company
  • Alpine Knitting Mills
  • Altoona and Logan Valley Electric Railway Company
  • Altoona Car Shops
  • Altoona High School
  • Altoona Logan Valley Elec . Railway Company
  • Altoona School District
  • Altoona Vocational Technology High School
  • Aluminum Company of America
  • Aluminum Company of America
  • Aluminum Company of America (ALCOA)
  • Aluminum Company of America (Alcoa) Building and Research Laboratories
  • Aluminum Smelting Corporation
  • Am. Department
  • Amalgamated Silk Corporation
  • Amber Realty Company
  • Ambridge Plant
  • Ambrose Augusterfer Corporation
  • Amchem Products Inc.
  • Amer Iron Steel Manufacturing Company
  • Amer Sheet and Tin Plate Company
  • Amer Sheet Steel Company
  • Amergen Energy Company
  • America Magnesia and Covering Company
  • America Steel and Wire Company
  • American Asbestos
  • American Austin Car Company
  • American Ax and Tool Company
  • American Axe and Tool Company
  • American Bank Note Company
  • American Bantam Car Company
  • American Baptist Publication Society
  • American Brake Shoe
  • American Brake Shoe Company
  • American Bridge Company
  • American Bridge Company
  • American Bridge Company
  • American Bridge Company
  • American Bridge Division
  • American Can
  • American Can Company
  • American Can Company
  • American Car & Foundry
  • American Car & Foundry
  • American Car & Foundry Industries, Inc.
  • American Chain & Cable Company
  • American Chain and Cable
  • American Cigar Company
  • American Clean Tile
  • American Cyanamid Company
  • American Dredge
  • American Dredging
  • American Dyewood Company
  • American Engineering Company
  • American Gas and Electric Company
  • American Gas Company
  • American Iron and Steel Company
  • American Lace Manufacturing Company
  • American Locomotive Company
  • American Locomotive Company
  • American Locomotive Company
  • American Motors
  • American Olean Tile
  • American Olean Tile Company, Inc
  • American Paper Products Company
  • American Pile Fabric Company
  • American Pipe Manufacturing Company
  • American Radiator and Standard Sanitary Manufacturing Corporation
  • American Railways Company
  • American Rolling Mill
  • American S. and W. Company
  • American Salvage Company
  • American Sheet & Tin Plate Company
  • American Sheet & Tin Plate Company
  • American Sheet & Tin Plate Company
  • American Sheet & Tin Plate Company
  • American Sheet and Tin Plate Company
  • American Steel and Wire Company
  • American Steel and Wire Company
  • American Steel and Wire Company
  • American Steel and Wire Company
  • American Steel Hoop Company
  • American Steel Hoop Company
  • American Stores Company
  • American Sugar
  • American Telephone & Telegraph
  • American Tube and Iron Company
  • American Type Founders Company
  • American Viscose
  • American Viscose Corp
  • American Viscose Corporation
  • American Warming and Ventilating Company
  • American Warming and Ventilating Company (AWV)
  • American Water Works & Guarantee Company
  • American Welding Company
  • American. Steel and Wire Company
  • Amjohn Inc.
  • Amoroso Bakery
  • AMP, Inc.
  • Amstar Sugar Factory
  • Anchor Brewing Company
  • Anchor Hocking Glass Company
  • Anchor Rooking Company
  • Anita Coal Mining Company
  • Annex Hotels Company
  • Anthony Compola Plumbing
  • Ap Green F B Company of W Ny
  • Ap Green Refractories Division
  • Apollo Iron & Steel Works
  • Apollo Iron and Steel Company
  • Appleton Papers Inc.
  • Applied Energy Services Inc
  • Arbogast & Bastian Company
  • Arbuckle Coffee Company
  • Arcade Building
  • Arcade Real Estate Company
  • Architectural Steel
  • Arco Polymer
  • Arden Verner Painting
  • Argo Mills
  • Argyl Manufacturing Company
  • Armco Steel
  • Armco Steel Corp
  • Armco Steel Corporation
  • Armco, Inc.
  • Armour and Company
  • Armstrong Contracting & Supply Corporation (ACandS, Inc.)
  • Armstrong Contracting & Supply Corporation (ACandS, Inc.)
  • Armstrong Contracting & Supply Corporation (ACandS, Inc.)
  • Armstrong Cork Company
  • Armstrong Cork Company
  • Armstrong Cork Company
  • Armstrong Floor Plant Building #500
  • Armstrong Power Station
  • Armstrong World Industries, Inc.
  • Armstrong World Industries, Inc.
  • Armstrong, Brother & Company, Inc.
  • Army Reserve Center
  • Art Loom Corporation
  • Asbestos and Magnesia Manufacturing Company
  • Asbestos, Shingle, Slate and Sheathing Company
  • Ashland Chemical Company
  • Ashland Emery and Corumdum Company
  • Asphalt Paving & Supply
  • Asten-Hill Manufacturing Company
  • AT&T Inc
  • AT&T Technologies
  • AT&T, Inc.
  • ATEC Building
  • Athos Steel Mill
  • Atlantic & Gulf Company
  • Atlantic Baking Group, Inc.
  • Atlantic City Railroad
  • Atlantic Crushed Coke Company
  • Atlantic Electric Motor
  • Atlantic Flour Mills
  • Atlantic Metals Company
  • Atlantic Oil Refinery
  • Atlantic Pipeline Company
  • Atlantic Port Contractors
  • Atlantic Refining Company
  • Atlantic Refining Company
  • Atlantic Refining Company (ARCO)
  • Atlantic Richfield Company
  • Atlantic Richfield Company (ARCO) Refinery
  • Atlas Cement Company
  • Atlas Portland Cement Company
  • Atomic Power Station
  • Auditorium Danville State Hopital
  • August Wagner Breweries, Inc.
  • Auto Car Company
  • Auto Steam Equipment Company
  • B & O Railroad
  • B & W Main Tube Plant
  • B F Goodrich Company
  • B.F. Refinery
  • Babcock & Wilcox Company
  • Babcock & Wilcox Company
  • Babcock & Wilcox Company
  • Babcock & Wilcox Koppel Works
  • Babcock and Wilcox Company
  • Babcock and Wilcox Tubular Products Div
  • Badenhauser
  • Badger Corp Benzoil Plant 8
  • Badger Us Steel Chemical Plt
  • Baeder Adamson and Company
  • Bailey Banks & Biddle Building
  • Bailey High School
  • Baker Carver & Morrell
  • Baker Chain and Wagon Iron Mfg. Co
  • Baker Elementary School
  • Baker, Smith and Company
  • Baldt Anchor Chain and Forge Company
  • Baldt Anchor Company
  • Baldt Anchor Forge Company
  • Baldwin – Lima-Hamilton
  • Baldwin Automotive
  • Baldwin Lima Hamilton
  • Baldwin Locomotive Works
  • Baldwin Locomotive Works
  • Baldwin Locomotive Works
  • Ball Engine Company
  • Balot Anchor Forge Company
  • Baltimore & Ohio Railroad Company
  • Baltimore & Ohio Railroad Company
  • Baltimore and Ohio Railroad
  • Baltimore and Ohio Railroad
  • Baltimore and Ohio Railroad Company
  • Bandw Tubular Products Div
  • Bangor Electric Light, Heat and Power Company
  • Bank of North America
  • Barber Asphalt Paving Company
  • Bard Insulation Company
  • Bargain City
  • Barkley Apartments
  • Barnes Construction Company
  • Barnum Breaker
  • Barnum Coliery
  • Barone Launch Service
  • Barone Launch Service, Inc.
  • Barrett Company
  • Barrett Manufacturing Company
  • Barrett Manufacturing Company
  • Barrett’s Roofing
  • Bartels Brewing Company
  • Basic Construction Company
  • Bath Portland Cement Company
  • Baugh Chemical
  • Baunner Island Elect Steam Sta
  • Beacon Light Company
  • Beall Tool Division of Hubbard & Company of Pittsburgh
  • Beam Yard Power House
  • Bear Gap Water Company
  • Bear Valley Number
  • Bear Valley Shaft
  • Beaumont Birch Company
  • Beaver County Geriatric Ctr
  • Beaver County Home and Hospital
  • Beaver Falls Medical Center
  • Beaver Valley General Hospital
  • Beaver Valley Power Station
  • Beaver Valley Traction Company
  • Beaver Valley Traction Company
  • Beaver Wire Company
  • Bechtel Steel Plant
  • Becks Run Pumping Station
  • Beckwith Machinery Company
  • Beeber Junior High School
  • Bell Telephone
  • Bell Telephone
  • Bell Telephone
  • Bell Telephone Company
  • Bell Telephone Company
  • Bell Telephone Company
  • Bell Telephone Company of Pa.
  • Bell Telephone Company of Pennsylvania
  • Bellefield Boiler Plant
  • Bellefield Hotel
  • Bellefonte Electric Company
  • Bellefonte Gas Company
  • Bellevue-Stratford Hotel Company
  • Belliott Turbomachinery Company Inc
  • Belmont Oil Works
  • Bement, Miles & Company
  • Ben Franklin Elementary School
  • Bendix Aircraft
  • Bendix Corporation
  • Bendix Westinghouse Company
  • Benjamin Foster Company
  • Benjamin Franklin Elementary
  • Benjamin Franklin Hotel
  • Benjamin Franklin Jr High School
  • Benjamin Rush Middle School
  • Bennett & Aspen
  • Bennett Station
  • Bennett Steel
  • Benzol Products Company
  • Berks Refining Company
  • Bers & Company
  • Bertz S.S. & Sons, Inc.
  • Berwick Forge and Fabricating
  • Berwin White Coal Company
  • Berwin White Coal Mining Company
  • Berwind White Coal Manufacturing Company
  • Berwind White Coal Mining Company
  • Beryllium Corp of Pennsylvania
  • Beryllium Corporation
  • Beryllium Corporation
  • Berylluim Corp
  • Bessemer and Lake Erie Railroad Company
  • Bessemer Coal Coke Company
  • Bessemer Steel Works
  • Bethel Park High School (BPHS)
  • Bethleham Steel Company
  • Bethlehem City Water Company
  • Bethlehem Cornwall
  • Bethlehem Corporation
  • Bethlehem Fairfield Shipyard Incorporated
  • Bethlehem Iron Works
  • Bethlehem Lukens Plate
  • Bethlehem Plant
  • Bethlehem Silk Company
  • Bethlehem Steel
  • Bethlehem Steel Company
  • Bethlehem Steel Corp
  • Bethlehem Steel Corporation
  • Bethlehem Steel Corporation
  • Bethlehem Steel Corporation
  • Bethlehem Steel Corporation
  • Bethlehem Steel Corporation
  • Bethlehem Steel Corporation
  • Bethlehem Steel Corporation
  • Bethlehem Steel Corporation
  • Bethlehem Steel Mill
  • Bethlehem Steel Shipyard
  • Bettis Atomic Power Laboratory
  • Bettis Atomic Power Laboratory
  • Betty Brackley-Linsky
  • Bickley Furnaces Incorporated
  • Bilc Super Market
  • Binder Cooperage
  • Bindley Hardware Company
  • Bingham House
  • Bird Coleman Furnaces
  • Birdsboro Corp
  • Bissell and Company
  • Black & Germer Stove Manufacturing Company
  • Black Liquor Oxidation System
  • Blaw-Knox Company
  • Blaw-Knox Company
  • Blooming Mill
  • Bloomsburg Heating Company
  • Blossom Products Corporation
  • Blue Ridge Winkler Textile Company
  • Blumberg and Sons
  • Blumenthal Brothers
  • Board of Education
  • Board of Education Buildings
  • Bodwell Company
  • Boeing Company
  • Boeing Vertol
  • Boeing Vertol Company
  • Boericke and Tafel Building
  • Boger & Crawford
  • Boggs & Buhl
  • Bok Technical High School
  • Bollinger Construction Company
  • Bon Secours Holy Family Hospi
  • Bonair Foundry Company
  • Bonney Forge & Tool Works
  • Bonney Forge, Division of Bonney Forge and Foundry, Inc.
  • Borg-Warner Automotive, Inc.
  • Bornet Cleaners
  • Bornot, Inc.
  • Borough of Ford City
  • Borough of Phoenixville
  • Borough of Quakertown
  • Borzillo Bakery
  • Boston & Ohio Railroad
  • Boston & Ohio Railroad
  • Boston & Ohio Railroad
  • Botany 500
  • Botfield Refractories Company
  • Bowman Trucking
  • Boyertown Burial Casket Company
  • Bp
  • BP Oil Corporation
  • BP Oil Corporation
  • Brackenridge Works Soaking Pit
  • Braddock and Turtte Creek Electric Railway
  • Braddock Electric Railway Company
  • Braddock General Hospital
  • Braddock Wire Company
  • Braddock Wire Company
  • Bradford Oil Refining
  • Bradford Supply Company
  • Bradlee and Company
  • Brandley Smith
  • Brandywine Mushroom Company
  • Bregy Elementary School
  • Bridge Shop
  • Bridgeville Plant
  • Brier Hill Coke Company
  • Brilliant Pumping Station
  • Bristol Water Works
  • Brithish Petro
  • British Petroleum
  • Broad Street Station
  • Brockway Glass
  • Brockway Glass Company
  • Bromley Lace Mill
  • Brooks Building
  • Brown and Company, Inc.
  • Brown Brothers and Company
  • Brown Instrument Company
  • Browning, King and Company Building
  • Bruce Mansfield Power Plant
  • Brunner Island Power Plant
  • Brunot Island Power Station
  • Brush Electric Light Company
  • Bryant School
  • Bryden Horseshoe Company
  • Bryn Mawr College
  • Bryn Mawr Hospital
  • Bryton Chemical
  • Buck Run Coal Company
  • Buckhorn Portland Cement Company
  • Bucknell University
  • Bucyrus – Erie
  • Budd Company
  • Budd Company
  • Budd Company
  • Buffalo and Susquehanna Coal and Coke Company
  • Buhl Steel Company
  • Buick Manufacturing Division
  • Bulletin Building
  • Buono Bakery
  • Bureau of Mines
  • Burke, Parsons & Bowlby
  • Burle Industries, Inc.
  • Burnham Corporation
  • Bustleton Elementary
  • Butler
  • Butler Colliery
  • Butler County Memorial Hospital
  • Butler Health System
  • Butler High School
  • Butler Light, Heat and Power Company
  • Butler State Memorial Hospital
  • Butler Township
  • Butler Works
  • Byberry State Mental Hospital
  • C. C. Harrison Building
  • C. E. Monday and Company
  • C. Howard Marcy State Hospital
  • C. Schmidt and Sons Brewing Company
  • C.A. Spalding
  • C.B. Comstock
  • C.C. and E. P. Townsend Company
  • C.C. Knight Company
  • C.E. Monday and Company
  • C.F. Simonin’s Sons, Inc.
  • C.H. Bradley and Company
  • C.H. Geist Company
  • C.H. Maslin and Sons
  • C.H. Wheller Manufacturing
  • C.L. Miller Company
  • Caledonian Dye Works
  • Callery Chemical Company
  • Calumet Lubricants Company
  • Cambria and Clearfield Railway Company
  • Cambria Iron Company
  • Cambria Leasing Corporation
  • Cambria Library Association
  • Cambria Steel Company
  • Cambria Steel Company
  • Camden Copper Works
  • Camden Fibre Mills
  • Cameron Colliery
  • Cametoo Company
  • Campbell Soup Company
  • Canonsburg Iron and Steel Company
  • Canonsburg Iron and Steel Works
  • Canonsburg Steel and Iron Company
  • Capitol Products Company
  • Carbon Malleable Casting Company
  • Carbon Steel Company
  • Carbon Transit Company
  • Carbondale High School
  • Carbondale Machine Company
  • Carey Brothers Wall Paper Manufacturing Company
  • Carey Manufacturing
  • Carlin William Steam Boilers
  • Carlisle Barracks
  • Carlisle Gas and Water Company
  • Carlson Manufacturing Company
  • Carnecie Ill. Steel Company
  • Carnegie Brothers and Company, Ltd.
  • Carnegie Ill. Steel Company
  • Carnegie Institute of Technology
  • Carnegie Library
  • Carnegie Library
  • Carnegie Mellon University
  • Carnegie Natural Gas Company
  • Carnegie Natural Gas Company
  • Carnegie Phipps and Company Ltd
  • Carnegie Steel Company
  • Carnegie Steel Company
  • Carnegie Steel Company
  • Carnegie Steel Company
  • Carnegie Steel Company
  • Carnegie Steel Company
  • Carnegie Steel Company
  • Carnegie Steel Company
  • Carnegie Steel Company
  • Carnegie Steel Company
  • Carnegie Steel Works
  • Carnegie Tech
  • Carnegie Tube Company
  • Carnegie-Illinois Steel Corporation
  • Carnegie-Illinois Steel Corporation
  • Carnegie-Illinois Steel Corporation
  • Carnegie-Illinois Steel Corporation
  • Carnegie, Phipps and Company
  • Carpenter Steel Company
  • Carpenter Technology Corporation
  • Carpenters Union – Local 1462
  • Carpenters Union – Local 2850
  • Carrie Blast Furnaces
  • Carrie Furnace
  • Carrie Furnace Company
  • Carson Industrial Development Corporation
  • Castanea Paper Company
  • Catalytic Incorporated
  • Catasauqua Manufacturing Company
  • Caterpillar, Inc.
  • Cedar Cliff Silk Company
  • Celotex
  • Central Cement Company
  • Central District and Printing Telegraph Company
  • Central Gas & Electric
  • Central High School
  • Central Iron & Steel Company
  • Central Land Company
  • Central New Jersey Railroad
  • Central Power Plant
  • Central Railroad of New Jersey
  • Central Works
  • CertainTeed Corporation
  • CertainTeed Corporation
  • CertainTeed Products Company
  • Chamber of Commerce Building
  • Chamberlain Coal Company
  • Chamberlain Manufacturing Corporation
  • Chambersburg Hospital
  • Chambersburg Powerhouse
  • Champion Construction Company
  • Chaplin, McGuiness & Co.
  • Charleroi Construction Company
  • Charleroi Paint & Glass Company
  • Charles E. Langcake
  • Charles H. Caspar For Class & Nachod BwG Company
  • Charles Lenning and Company, Inc.
  • Charles McCaul Company
  • Charles T. Schoen
  • Charmin Paper Company
  • Charmin Paper Company
  • Charmin Paper Products Company
  • Charmin Paper Rod Company
  • Chartiers Valley High School
  • Chas Lachman Company, Inc
  • Chas St Suppes
  • Chatham Center
  • Chelten Supply House
  • Chemical Concentrates
  • Cherion and Radnor Gas and Electric Company
  • Cherokee Plant
  • Cherry River Paper Company
  • Chester High School
  • Chester Lace Company
  • Chester Paper Company
  • Chester Processing Company
  • Chestnut Hill Hospital
  • Cheswick Power Station
  • Chew‐Bittel Company
  • Chicago Bridge & Iron Company
  • Chicago Pneumatic
  • Chicago Pneumtic Tool Company
  • Children’s Homeopathic Hospital
  • Children’s Hospital
  • Children’s Reception Welfare
  • Chilled Roll Foundry
  • Chipman Knitting Company
  • Chipman Knitting Mills
  • Chocura
  • Christ United Methodist Church
  • Christopher Mining Company
  • Cities Service Oil Company
  • Citizens Bank
  • Citizens Elect Light Company
  • Citizens Electric Ill Company
  • Citizens Electric Light, Heat and Power Company
  • Citizens General Hosp.
  • Citizens Light Heat and Power Company
  • Citizens Water Supply Company
  • City Electric Light Plant
  • City Hall & Courthouse
  • City Mill
  • City of McKeesport Water Department
  • City of Philadelphia – Department of Streets Sanitation
  • City of Philadelphia – Yard & Garage Office Building
  • Civic Arena
  • Civic Center
  • Claire Furnace Company
  • Clairton By-Products Coke Works
  • Clairton Coke Works
  • Clairton High School
  • Clairton Steel Works and Furnaces
  • Clarion Mills
  • Clay Mill Works
  • Clear Spring Coal Company
  • Clearfield Bank
  • Clearfield High School
  • Clearfield Hospital
  • Clearview Elementary School
  • Cleaver Brooks Company
  • Cleveland Worsted Mills
  • Clinton G. Hodder, Inc.
  • Clinton Iron and Steel Company
  • Coal Brook Mine
  • Coalfax Power Station
  • Coatesville Rolling Mill Company
  • Cochrane D&V Crane Corporation
  • Coke Boiler House
  • Coke Oven Div
  • Colfax Station
  • College Park
  • Collieries Supply & Equipment Company
  • Colliery Number 18
  • Colonial Aluminum & Smelting Company
  • Colonial Berks Real Estate Company
  • Colonial Colheries Company
  • Colonial Colheries Company
  • Colonial Steel Company
  • Colonial Steel Company
  • Colonial Trust Company
  • Colt Industries
  • Colt Industries Crucible, Inc.
  • Columbia Bridge Company
  • Columbia Hospital
  • Columbia Metals Company
  • Columbia Plumbing Supply House
  • Columbia Water Company
  • Columbian Carbon Company
  • Combustion Engineering (C-E)
  • Combustion Engineering, Inc.
  • Cominsky Warehouse
  • Commerce Square
  • Commerce Street Building
  • Commercial Alcohol
  • Commons At Fallsington
  • Commonwealth of Pennsylvania
  • Commonwealth of Pennsylvania
  • Commonwealth of Pennsylvania
  • Commonwealth Title Insurance and Trust Company
  • Commonwealth Trust Bank
  • Community Central Energy Corporation
  • Community Central Energy Plant
  • Conemaugh Generating Station
  • Conemaugh Power Station
  • Conemaugh Power Station
  • Conemaugh Station
  • Conemaugh Valley Memorial Hospital
  • Conestoga Transportation Company
  • Conewango Refining Company
  • Congoleum
  • Congoleum Nairn Inc.
  • Connelly Containers
  • Connelly Paper Company
  • Conoqleum Company
  • Conrail
  • Conrail
  • Conshohocken Worsted Company
  • Consolidated Cigar Corporation
  • Consolidated Coal Company
  • Consolidated Gas Supply Corporation
  • Consolidated Ice Company
  • Consolidated Rail Corporation
  • Consolidated S. and W. Company
  • Consolidated S. and W. Company
  • Consolidated S. and W. Company
  • Consolidated Traction Company
  • Consumer’s Mining
  • Consumers Gas Company
  • Consumers Light Company
  • Consumers Power Co.
  • Container Corporation of America
  • Continental Can
  • Continental Diamond Fibre
  • Continental Distilling Company
  • Continental Mills, Inc.
  • Continental Rubber Works
  • Continental Wire & Cable
  • Convent of Mercy
  • Convention Center
  • Cooperative Power Plant
  • Coplay Cement Manufacturing Company
  • Coplay Cement Manufacturing Company
  • Corbits, Inc.
  • Corn and Corn Cob Products
  • Corning Glass
  • Corning Glass
  • Corning Glass Company
  • Corning Glass Works
  • Cornwall Iron Company
  • Cornwall Ore Bank Company
  • Coronado Apartments
  • Corrigan McKinney and Company
  • Country Dry Wall
  • Cowanshannock C. and C. Company
  • Cramp School
  • Cramps Shipbuilding Company
  • Crane Company
  • Crane Company
  • Crane Iron Works
  • Crane Supply Company
  • Crescent Iron
  • Crescent Steel Company
  • Cresmer Fence Company
  • Croft and Allen Company
  • Cross Brothers Meat Packing
  • Crown Cork & Seal
  • Crown Paperboard Company
  • Crown Products
  • Crozier Medical Center
  • Crucible Steel
  • Crucible Steel Company of America
  • Crucible Steel Company of America
  • Crump, Inc.
  • Crystal Ice Company
  • CSX Transportation
  • Cudahy Packing Company
  • Culp Industrial Insulation Company
  • Culp Industrial Insulation Company
  • Cumberland Lt Ht and Pr Company
  • Cumberland Valley Railroad Company
  • Curtin Elementary School
  • Curtis Publishing Company
  • Curtis-Wright Corporation Propeller Division
  • Custom Insulation Company, Inc.
  • Cyclops Corporation
  • Cytemp Specialty Steel
  • D Lutz Son Brewing Company
  • D M Trahan Proj Supt
  • D. L. and W Railroad Company
  • D. L. Clark Company
  • D. Lutz & Son Brewing Company
  • D. Oher Engineering Company
  • D.B. Fuller
  • D.L. and W. Railroad Company
  • D.L. and W. Railway Company
  • D.L. Molden and Brother
  • D.O.E.
  • D.S. Keith Junior High School
  • D’Olier Engineering Company
  • Dager and Cox Eureka Paper Mills
  • Dail Rock Coal Company
  • Dally Engineering-Valve Company
  • Damascus Nickel Steel Company
  • Dana Corporation
  • Daniel J. Keating
  • Danville Powerhouse
  • Danville State Hospital
  • Danville Stove and Manufacturing Company
  • Danville Structural Tubing Company
  • Danville Water Works
  • Daring Paper Company
  • Darlington Building
  • Darrah Contracting Inc.
  • Daugherty Refinery
  • Dauphin County Prison
  • Davison Coke and Iron Company
  • Day & Zimmerman
  • Days Inn
  • De Witt P Henry Company
  • Decorating & Display Studio
  • Defense Plant Corporation
  • Defense Supply Agency
  • Delancy School
  • Delaware & Magnetic Springs Railway Company
  • Delaware Alloy Forge
  • Delaware and Hudson Canal Company
  • Delaware and Hudson Coal Handling Plant
  • Delaware and Hudson Company
  • Delaware and Hudson Company
  • Delaware and Hudson Company
  • Delaware County Electric Company
  • Delaware Lackawanna and Western Rr Company Diamond Mines
  • Delaware River Cordage Mill
  • Delaware River Steel Company
  • Delaware Station
  • Delaware Storage and Freezing Company
  • Delaware Waterside Station
  • Delaware, Lackawanna and Western Railroad (DL&W)
  • Delaware, Lackawanna and Western Railroad Company
  • Deleware, Lackawanna and Western Railroad Company
  • Delta Equipment Company
  • Delworth Paper Company
  • Department of Motor Vehicles Building
  • Department of Safety
  • Department of the Interior Bureau of Mines, Pittsburgh Research Center
  • Desuperheater Station
  • Detroit Steel Products Company
  • Deval Corporation
  • Dexter Portland Cement Company
  • Diamond Alkali Company
  • Diamond Bank Building
  • Diamond Coal Mine
  • Diamond Drill Machine Company
  • Dickson Works
  • Didier Station
  • Dietz Trucking, Inc.
  • Dill and Collins Company
  • Dilworth, Porter & Company
  • Dimling-Bolan Building
  • Diversitech General
  • Dixie Cup Plant
  • Dm Bare Paper Company
  • Dock St. Plant
  • Dodge Colliery Breaker
  • Dodge Steel Company
  • Dodson Mines Plymouth Coal Company
  • Dohler – Jurvis Division
  • Dolph Coal Company
  • Dolph Coal Company
  • Domino Sugar Refinery
  • Donahue & Weber Construction Company
  • Donora Brewing Company
  • Donora Zinc Works
  • Donovan Cement
  • Donovan Company
  • Dorchester Apartments
  • Dorr Oliver Inc
  • Double Woven Corporation of America
  • Dougherty Bachran
  • Downey Center Mayview State Hospital
  • Downtown Station
  • Dowty Corporation
  • Doyle and Company
  • Doylestown and Willow Grove Railway Company
  • Dr. W.A. Drysdale
  • Drake Hotel
  • Dravo Contracting Company
  • Dravo Corporation
  • Dravo Corporation
  • Dravo Corporation
  • Dravo Corporation
  • Dravo Shipbuilding
  • Dravo-Doyle Company
  • Dredge Philadelphia
  • Dresser Manufacturing Division
  • Drexel Institute
  • Drexel University
  • Driggs Sealury Ordnance Corp
  • Driggs Seaway Ordnance Corp
  • Dubois Elect and Tractn Company
  • Dubois Hospital
  • Duff-Norton Manufacturing Company
  • Duggan & Macron, Inc.
  • Dunmon Iron and Steel Company
  • Duplan Corporation
  • Duplan Silk Corp
  • DuPont Chemical
  • Duquesne Brewing Company
  • Duquesne Brewing Company
  • Duquesne Brewing Company
  • Duquesne Forge Company
  • Duquesne Forge Company
  • Duquesne Ice Company
  • Duquesne Incinerator
  • Duquesne Light Company
  • Duquesne Light Company
  • Duquesne Light Company
  • Duquesne Light Company
  • Duquesne Light Company
  • Duquesne Light Company
  • Duquesne Light Company
  • Duquesne Station
  • Duquesne Steel Works
  • Duquesne University Science Hall
  • Duraloy Company
  • Durham Public School
  • Dwight D. Eisenhower Apartments
  • E T Edwards
  • E W Bliss Company
  • E. Bergendahl
  • E. I. Dupont Denemours & Company
  • E. T. Stotesbury Residence
  • E.B. Leaf Company
  • E.C. Knight and Company
  • E.F. Houghton and Company
  • E.I. Du Pont De Nemours and Company
  • E.J. Lavion and Company
  • E.J. Lavion and Company
  • E.L. Rothschild Building
  • E.L. Wiegand Company
  • E.M. & W. Ferguson
  • E.N. Hyde Heating Company
  • E&G Brooke Plant
  • Earbeu Harding and Company
  • East Boston Colliery
  • East End Electric Light Company
  • East Hempfield Elementary School
  • East Liberty Farmers’ Market
  • East Penn Refractories Company
  • East Senior High School
  • Eastern Affiliated Services Corp
  • Eastern Asphalt Company
  • Eastern Foundry Company
  • Eastern Hydraulic Press Brick Company
  • Eastern Industrial Insulation Co.
  • Eastern Industrial Insulation, Inc.
  • Eastern Penn Psychiatric Institute
  • Eastern Penna Railways Company
  • Eastern Pennsylvania Power Company
  • Eastern Steel Company
  • Easton Gas and Electric Company
  • Easton High School
  • Easton Shopping Center
  • Eaton Corp
  • Eaton Corporation
  • Econolodge
  • Eddystone Manufacturing Company
  • Eddystone Powerhouse
  • Eddystone Station
  • Edgar Thompson Works
  • Edgar Thomson Steel Works
  • Edgewater Steel Company
  • Edgewater Steel Company
  • Edgewood Mill
  • Edison and Illuminating Company
  • Edison and Illuminating Company
  • Edison Electric Ill’G Company
  • Edison Electric Illg Company
  • Edison Electric Illmg. Company
  • Edison Electric Illum’G Company
  • Edison Electric Illuminating Company
  • Edison Electric Illuminating Company
  • Edison Electric Illuminating Company
  • Edison Electric Light Company
  • Edison Electric Light Company
  • Edison International
  • Edison Light and Power Company
  • Edison Light Company
  • Edison Mission Energy
  • Edith Furnace
  • Edward Fay and Son
  • Edward G. Budd Manufacturing Company
  • Edwin Harrington Son and Company
  • Ehret Magnesia Manufacturing Company
  • Einstein Medical Center
  • Electralloy
  • Electralloy Corp
  • Electric Auto-Lite Company
  • Electric Company of America Land Title Building
  • Electric Power Station
  • Electric Storage Battery Company
  • Electric Traction Company
  • Electricians Union – Local 98 (I.B.E.W.)
  • Elementis Pigments, Inc.
  • Eleventh Ward Elementary School
  • Eliza Pipe Shop
  • Eliza Pump House
  • Elliot Company
  • Elliot Steel Company
  • Elliott Turbomachinery Company Inc
  • Ellwood City Forge Corp
  • Ellwood Elementary
  • Elrama Power Plant
  • Elrama Powerhouse
  • Elrama Station
  • Empire Building
  • Empire Iron Steel Company
  • Empire Mills
  • Empire Reeves Steel Company
  • Empire Steel Products
  • Employment Security Office
  • Enamel Products & Plating Company
  • Enterprise Galvanizing
  • Enterprise Transit Company
  • Episcopal Hospital
  • Epsilon Zeta Alumni Association
  • Equitable Gas Company
  • Equitable Gas Energy Company
  • Equitable Ill Gas Light Company
  • Equitable Life Assurance Society
  • Erben Harding Company
  • Erben Harding Company
  • Erie City Iron Works
  • Erie Coke Corporation
  • Erie County Electric Company
  • Erie Forge & Steel, Inc.
  • Erie Forge and Steel Company
  • Erie Lackawanna Railroad
  • Erie Lighting Company
  • Erie Malebus Iron
  • Erie Railroad
  • Erie Railroad Company
  • Erwin Plumbing
  • Esso Standard Oil Company
  • Estate of James Lord Jr.
  • Estate of Stephen Greene
  • Estate of William Weightman
  • Eureka
  • Eureka Colliery North 35
  • Eureka Limestone
  • Eureka Specialty Printing Company
  • Evans Colliery Company
  • Everts and Overdeer
  • Ewen Breaker
  • Excelsior Steam Planning Mill
  • Exchange Building
  • Exelon Generation Company
  • Exelon Generation Company
  • Exelon Power
  • Exelon Power
  • Exeter Colliery
  • Exeter Machine Works
  • Exeter Power Company
  • Exide Battery Company
  • Exton Mall
  • F.A. Pavlick
  • F.A. Poth & Sons Brewery
  • F.A. Poth Brewing Company
  • F.C. Roberts and Company Engineers
  • F.G. Vogt and Sons
  • F.W Darlington C.E.
  • F.W. Tunnell Glue Manufacturing
  • Fairhill Apartments
  • Fairless Hills Steel Mill
  • Fairless Steel
  • Fairless Works
  • Fairless Works
  • Fairless Works Us Steel
  • Fairmoint Wooster Mills
  • Fairmount Construction Company
  • Fairmount Park Commission
  • Fairmount Park Transportation Company
  • Fanny Farmers Candy
  • Farmers Bank Building
  • Farrell Steel Works and Furnaces
  • Fawcus Machine Company
  • Fayette Cty
  • Fayette Manufacturing Company
  • Fayette R. Plumb, Inc.
  • Federal Container Company
  • Federal Enameling and Stamping Company
  • Federal Office Building
  • Federal Paper Board Company, Inc.
  • Federal Savings Bank
  • Federal Steel Foundry Company
  • Feita Corporation
  • Felins Meat Packing
  • Fels & Company
  • Fels-Naptha Soap Company
  • Ferrows Chemical Company
  • Fidelity Bank Building
  • Fidelity Insurance Trust and Safe Deposit Company
  • Fidelity Mutual Life Insurance Company
  • Finnaren & Haley Paint
  • Fire Department Repair Shop
  • Firestone Plastics Plant
  • Firestone Rubber Company
  • Firestone Tire & Rubber
  • Firestone Tire Company
  • First Capital Insulation, Inc.
  • First Energy Nuclear Operatin
  • First Federal Savings and Loan Association
  • First National Bank
  • First National Bank Building
  • First Pennsylvania Banking & Trust
  • First Presbyterian Church
  • First Presbyterian Church
  • Firth Sterling Inc
  • Firth Sterling Inc.
  • Firth Sterling Steel Company
  • Firth Sterling Steel Company
  • Fitzpatrick Sheetmetal
  • Fitzsimmons Junior High School
  • Flagg, Stanley G. & Company
  • Flaunery Bolt Company
  • Fleischer Mills
  • Fmc Corp American Viscose Div
  • Fogelsville Mill
  • Follansbee Brothers Company
  • Folwell Bros. & John Bromley Sons
  • Food Distribution Center
  • Food Fair Stores
  • Foote Mineral Company
  • For Scrap
  • Forbes Steel Company
  • Ford and Kendig Company
  • Ford City Foundry and Machine Company
  • Ford Motor Company
  • Ford Motor Company
  • Forged Steel Wheel Company
  • Forrest Laundry
  • Fort Indiantown Gap Military Reservation
  • Fort Miffin
  • Fort Pitt Brewing Company
  • Fort Pitt Hotel
  • Fort Pitt Malleable and Grey Iron Company
  • Fort Pitt Malleable Iron Company
  • Fort Pitt Steel Casting Company
  • Fort Pitt Supply Company
  • Founders Hall
  • Four States Coal & Coke Company
  • Fox Run Apartments
  • Francis Brothers and Jellett, Inc.
  • Francisco Sugar Company
  • Francisco Sugar Company
  • Frank & Seder Department Store
  • Frank-Kneeland Machine Company
  • Frankford Arsenal Bureau of Ordnance
  • Frankford Hospital
  • Frankford Junction
  • Frankford Metal Treating
  • Frankford Plant
  • Franklin Mint
  • Franklin Motel
  • Franklin Quality Refining Company
  • Franklin Smelting & Refining
  • Franklin Steel Works
  • Franklin Sugar Refining Company
  • Franklin Works
  • Frantz Heating & Roof Company
  • Freebrook Corporation
  • Freedom H.S.
  • Freight Pitcalm Pittsburgh
  • Freihofer Vienna Baking Company
  • Frick Building
  • Friskies PetCare Company
  • Frog Switch Manufacturing Company
  • G B Markle and Company
  • G B Markle Company
  • G W Johnson Company
  • G. Garrett & Sons
  • G. W. Blabon Company
  • G.K. Garrett Company
  • G.W. Allen and Company
  • G.W. Childs Public Ledger Building
  • GAF Corporation
  • GAF Materials Corporation
  • Gage Company
  • Gair Box
  • Gallery Chemical Corporation
  • Garfield Junior High School
  • Garland Brothers’ Funeral Home
  • Garrick Theatre
  • Gautier Steel Department
  • Gaylord Colliery
  • Geisler and Company
  • Gem Manufacturing Company
  • Gene’s Garage
  • General American Transportation Corp
  • General Chemcial Company
  • General Chemical Company
  • General Dynamics Corporation
  • General Electric
  • General Electric (GE) Industrial Tube Plant
  • General Electric Company
  • General Electric Company
  • General Electric Company
  • General Electric Company
  • General Electric Company
  • General Electric Company (GE)
  • General Electric Company (GE)
  • General Electric Company (GE)
  • General Engineering Works, Inc.
  • General Ionics Corporation
  • General Motors Corporation (GM)
  • General Refrigeration Company
  • General Services Administration
  • General Smelting & Refining
  • General Smelting & Refining Company
  • General Steel Castings Company
  • General Textile Mills
  • General Tire & Rubber Company
  • General Tire & Rubber Company
  • Geneva College
  • Gentex Corp
  • Geo. W. Blabon Company
  • George A. Fuller Contracting Company
  • George A. Smith and Company
  • George F. Uber Company
  • George Hasley and Sons
  • George M. Newhall Engineering Company
  • George S. Harris and Sons
  • George Sall Metals Company
  • George V. Hamilton, Inc.
  • Georgia-Pacific Pulp & Paper
  • Gerard Trust Building
  • German Hospital
  • Germantown District High School
  • Germantown Hospital
  • Germantown Jewish Center
  • Germantown Junction
  • Germantown YMCA
  • Gibson and Sons, Ins.
  • Gilbert Associates, Inc.
  • Gimbels Store
  • Gipsey Grove Colliery
  • Girard Coal Company
  • Girard Coal Company
  • Girard College
  • Girard Estate Peoples Bank
  • Girard Point
  • Girard Refinery
  • Girard Trust Company
  • Girls Normal School
  • Glasgow Iron Company
  • Glatfelter P H Company
  • Glatfelter Paper Mill
  • Glen Alden Coal Company
  • Glen Alden Coal Company
  • Glen Alden Coal Company
  • Glen Alden Coal Company
  • Glen Willow Ice Manufacturing Company
  • Glen-Gery Brick
  • Glenn M. Baker Heating & Plumbing
  • Glenwood Station
  • Globe Automatic Sprinkler System
  • Globe Dye Works Company
  • Globe Eye Works
  • Globe Rubber Company
  • GLP Company
  • Glyco Chemicals Division
  • Gold Bond Building Products
  • Goldsmith Building
  • Goldsteins & Sons, Inc.
  • Goodyear Tire & Rubber Co.
  • Goodyear Tire and Rubber
  • Gordon, Strobel & Lawreau
  • Graham Foundry and Machine Company
  • Grant Street Transportation Center
  • Grant Towers
  • Gratz & Gillespie School
  • Grays Ferry Cogeneration Part
  • Grays Ferry Road and Carpenter Street
  • Great Lakes Steel Corporation
  • Green Bag Cement
  • Green Ridge Coal Company Breaker
  • Green Ridge Train Station
  • Green Spring Company
  • Greenville Steel Car Company
  • Greyhound Bus Terminal
  • Grinnell Company Inc
  • Grocer’s Sugar House
  • Grosglass
  • Grover Cleveland Public School
  • Guardian Encr & Dev Company
  • Gulf Oil
  • Gulf Oil Corporation
  • Gulf Oil Corporation
  • Gulf Refinery
  • Gulf Refining Company
  • Gulf Refining Company
  • Gulf Research & Development
  • Gulf Research & Development
  • Gulf Research and Development Company
  • Gun Plant
  • H. Daroff and Sons
  • H. F. Watson Company
  • H. J. Heinz Company
  • H. Julius Klingler and Company
  • H. Koppers Company
  • H. N. Crowder Jr. Company
  • H.C. Frick Coke Company
  • H.C. Price Company
  • H.D. Justi Company
  • H.H. Robertson Company
  • H.H. Robertson Company
  • H.J. Heinz Company
  • H.J. Heinz Company
  • H.K. Crimming Tradesman Grain Elevator and Storage Company
  • H.K. Cummings
  • H.K. Porter Company
  • H.K. Porter, Inc. Building
  • H.L. Edwards and Company
  • H.R. Curry
  • H.R. Curry Company
  • H.W. Butterworth and Sons
  • Hafleigh and Company
  • Hahnemann Hospital
  • Hainesworth Steel Company
  • Hajoca Building
  • Hale Building
  • Hall and Garrison
  • Hamilton Watch Company, Inc.
  • Hammermill Paper
  • Hammermill Paper Company
  • Hamot Medical Center
  • Hampton Boiler and Electric Power Plant
  • Hampton Mine
  • Handy & Harman Tube Company
  • Hanover Power Company
  • Harbison and Walker Company
  • Harbison-Walker Refractories Company
  • Harcum Junior College
  • Hardesty Industries
  • Harding Ave. Jr. High School
  • Hardinge, Inc.
  • Hardware & Industrial Tool
  • Hardwick and Magee Company
  • Harleigh Brookwood Coal Company
  • Harmar Coal
  • Harrisburg Foundry and Mach Company
  • Harrisburg Hospital
  • Harrisburg Light & Power Company
  • Harrisburg State Hospital
  • Harrisburg Station
  • Harrisburg Steel Corporation
  • Harrisburg Water Works
  • Harrison Brothers
  • Harrison Building
  • Harrison, Frazier and Company
  • Harrison, Havemeyer and Company
  • Harshaw, Fuller and Goodwin Company
  • Hartman Steel Company
  • Hatfield Power Station
  • Hatfield Power Station
  • Hatfield Power Station On West Bank
  • Hatfield Station
  • Hatfields Ferry Power Station
  • Hays Army Ammunition Plant
  • Hazard Manufacturing Company
  • Hazel Atlas Glass Company
  • Hazelton Water Works.
  • Hazelwood Works
  • Hazleton Brick Company
  • Hazleton Electric Light and Power Company
  • Hbg
  • Healthsouth Reading Rehabilitation Hospital
  • Heeren Brothers & Company
  • Heintz Manufacturing Company
  • Helfenstein, Lewis and Green
  • Hendel Brothers, Sons and Company Hat Factory Building
  • Henderson Sugar Refinery
  • Hendrick Manufacturing Company
  • Henry Colliery
  • Henry Miller Spring and Manufacturing Company
  • Henry Phipps Central Power Plant
  • Henry Phipps Mutual Training School
  • Henry W. Oliver Central Power Plant
  • Heppenstall Company
  • Heppenstall Eddystone Corp
  • Heppenstall Forge and Knife Co.
  • Heppenstall Forge Eddystone Company
  • Hercules Powder Company
  • Herman Goldner Company
  • Herron Hill Pumping Station
  • Herrs Island
  • Hershey Chocolate Corporation
  • Hershey Foods Corporation
  • Hershey Medical Center/Hospital
  • Hershey State Police Training Barri
  • Hess Brothers Department Store Warehouse
  • Hess Corporation
  • Hess Department Store
  • Heston High School
  • Hestonville Mantua and Fairmount Passenger Railroad Company
  • Hetrick and Wilson
  • Heyl & Patterson, Inc.
  • Hickory Ridge Colliery
  • Hickory Swamp Colliery
  • Highland Brewing Company
  • Highland North 5 Colliery
  • Hillside Coal and Iron Company
  • Hilton Hotel
  • Hilton Hotel
  • Hinchliffe and Keener, Inc.
  • Hiram Swanks Son
  • Hirsch Air
  • Hoffmann Machine Company, Inc.
  • Hog Island Shipyard
  • Holiday Inn
  • Hollenback Colliery
  • Hollidaysburg Power Station
  • Holy Redeemer Hospital
  • Home Electric Light and Steam Heating Company
  • Homeopathic Medical and Surgical Hospital and Dispensary
  • Homer City Powerhouse
  • Homestead Highland
  • Homestead Steel Works
  • Homestead Steel Works
  • Homestead Water Works
  • Homestead Works Us Steel
  • Hood, Bonbright and Company
  • Hooples and Townsend Company
  • Hope Natural Gas Company
  • Hopeman Borthers
  • Hopkinson House Apartments
  • Hopper Paper Company
  • Horlacher Brewing Co.
  • Horsehead Industries
  • Host Motel
  • Hotel Lafayette
  • House of Correction
  • House of Good Shepherd
  • House of the Good Shepherd
  • Howard Axle Plant
  • Howard Reed
  • Howe and Polk
  • Howe and Samuel
  • Howe Sound Company, Inc.
  • Howe, Brown & Company, Ltd.
  • Howmet Corporation
  • Hudson Coal Company
  • Hudson Coal Company
  • Hudson Coal Company
  • Hudwood Irwin Company, Inc.
  • Huff Power Station
  • Hugh Mcinnes Rebecca Paper Mill
  • Hughes And Gawthrop Company
  • Hughes and Patterson
  • Hugus & Hacke
  • Hummelstown Water Supply Company
  • Hunter Manufacturing
  • Hunter Saw & Machine
  • Hunting Park Plant
  • Hussey Building
  • Hutchinson Street Station
  • HV Charles Company
  • Hyde Park Gas Company
  • Hydro-Blast, Inc.
  • Hydro-Blast, Inc.
  • Hydro-Blast, Inc.
  • Hydro-Blast, Inc.
  • Hydro-Blast, Inc.
  • Hygeia Ice Company
  • Hygrade Food Products
  • Hyman Brodsky & Son
  • I.T.E. Circuit Breaker Company
  • I.T.T. Fluid Products Corporation
  • IBM Building
  • Illinois Steel Company
  • Illinois Zinc Company
  • Immaculate Conception Cathedral
  • Immaculate Conception School
  • Imperial Leather Company
  • Imperial Type Metals
  • Independence Hall
  • Independent Brewing Company
  • Independent Brewing Company of Pittsburgh
  • Independent Manufacturing Company
  • Indiana Cold Stge and Ice Company
  • Indiana County Railways Company
  • Indiana Erie Company
  • Indiana Provision Company
  • Indiana State Teachers College
  • Industrial Air Conditioning
  • Industrial Cold Storage and Warehouse Company
  • Industrial Equipment Company
  • Industrial Valley Bank
  • Ingersoll Rand Company
  • Ingersoll Rand Company
  • Ingersoll Sergeant and Drill Company
  • Ingram Richardson Company
  • Inland Container Corporation
  • Inland Products, Inc.
  • Inolex Chemical
  • Interlake Iron Company
  • International Business Machines (IBM) Building
  • International Motor Company
  • International Paper Company
  • International Paper Company
  • International Paper Company
  • International Service Industries
  • Interstate Railways Company
  • Intertek Pilot Plant Services
  • Iowa Barb Wire Fence Company
  • Iron City Heating Company
  • Ironworkers Union
  • Iroquois Apartments
  • IRS Building
  • Irwin Works
  • Isabella Furnace Company
  • Isbrill and Company
  • Isimbel Brothers Stable
  • Island Petroleum Company
  • Island Petroleum Company
  • ITE Circuit Breaker Company
  • IVB Building
  • Ivy Rock Farm
  • J and R Meily
  • J B Kelly Construction
  • J D Fenny Company
  • J H Wilcox
  • J W Rex Company
  • J. and W. Yewdall
  • J. B. Veatch
  • J. H. & C. K. Eagle
  • J. Langdon and Company Inc.
  • J. W. Koch Company
  • J.A. Dougherty’s Sons
  • J.B. Ellison and Sons
  • J.B. Lippincott Building
  • J.C. Graham and Company
  • J.C. Grover & Sons
  • J.C. Klauder Estate
  • J.C. McDowell
  • J.D. Morrissey, Inc.
  • J.E. Baker Company
  • J.E. Patterson
  • J.E. Potter and Company
  • J.F. Betz and Sons
  • J.F. Betz and Sons
  • J.F. Buchanan and Company
  • J.G. Brill and Company
  • J.G. Brill Company
  • J.H. and C.K. Eagle Company
  • J.H. Michener and Company
  • J.J. De Kinder
  • J.J. White Company
  • J.K. Wright and Company
  • J.S. and T. Elkinton
  • J.S. Wentz
  • J.T. Bennett Company
  • J.W. Arrott Insurance Agency
  • J.W. Ivory Company
  • Jacoby Heating, Inc.
  • James Bonar & Company
  • James C. Morrissey
  • James Evans Memorial Presbyterian Church
  • James H. Reed Power Station
  • James Irwin and Company
  • James L. Stuart Construction Company
  • James Lees and Sons Company
  • James Martin and Company
  • James Mckay Company
  • James P. Wood Heating Company
  • Jamison Coal and Coke Company
  • Jamison Coal and Coke Company
  • Janney Cylinder
  • Jaunty Fabric Corporation
  • Jaunty Silk Company, Inc.
  • Jawood Lukens
  • Jayval Marine Corporation
  • Je Patterson and Company
  • Jeannette Glass Company
  • Jeannette Shade & Novelty Company
  • Jeddo Highland Coal Company
  • Jefferson and Clearfield Company
  • Jefferson Hospital
  • Jefferson Medical College
  • Jenny Cylinder
  • Jere Woodring and Company
  • Jere Woodring and Company
  • Jermyn and Company
  • Jersey Cereal Food Company
  • Jesse W. Starr Jr.
  • Jessop Steel Corp
  • Jessop Steel Plant
  • Jetronic Industries
  • Jewish Home for the Aged
  • Jewish Hospital
  • Jno. A. Rigg
  • Joel J. Bailey and Company
  • John A. Rigg
  • John B. Kelly Construction
  • John B. Stetson Company
  • John Bartram Senior High School
  • John Bistelson Company
  • John Bromley and Sons
  • John Brown’s Sons
  • John Cohen Clothes
  • John F. Casey, Incorporated
  • John J. Kane Regional Center
  • John Lang Paper Company
  • John Moffet Elementary School
  • John Mundell and Company
  • John Mundell and Company
  • John Potero Company
  • John S. Pepson
  • John Tack & Sons
  • John Tearney Heating & Plumbing
  • John Veith Colliery
  • John Wanamaker Department Store
  • John Wanamaker Store
  • John Wood Company
  • John Wood Manufacturing Company
  • John Yewdall Keystone Mills
  • John Zimmermann and Sons
  • John-David Company
  • Johnnys Gas Station
  • Johns-Manville
  • Johnson Company
  • Johnson Construction Company
  • Johnstown Water Authority
  • Jonathan Ring and Son
  • Jones & Laughlin Steel
  • Jones & Laughlin Steel
  • Jones and Laughlin Steel Company
  • Jones and Laughlin Steel Company (J&L Steel)
  • Jones and Laughlin Steel Corporation
  • Jones and Loughlin Steel Corporation
  • Jones Junior High School
  • Jones Laughlin Steel Company
  • Joseph Berliner Company
  • Joseph Horne Company
  • Joseph R. Foster Sons
  • Joseph S. Finch and Company
  • Julius Kayser Company Crown Plant
  • Junior High School
  • Justi Division W. Gold Ref.
  • K and L Refractory Service
  • Kaiser Engineers
  • Kaiser Job
  • Kaiser Metal
  • Kaltenback and Stephens
  • Kane School
  • Karl Lieberknecht, Inc.
  • Kaufmann’s Department Store Building
  • Kawecki Berylco Industries (KBI)
  • Kawecki Chemical Company
  • Kawecki Chemical Company
  • Keasbey & Mattison Company
  • Keasbey and Mattison
  • Keebler Biscuits Company
  • Keenan Company
  • Kellogg’s
  • Kelly & Jones Company
  • Kelly and Jones Company
  • Kelly and Ludwig
  • Kelsey Hayes Wheel Company
  • Kendall Refining
  • Kendall Refining Company
  • Kennametal Inc
  • Kennedy/Marshall Company
  • Kensington Water Company
  • Kewecki Berylco Ind Inc
  • Keystone Asbestos-Magnesia Company
  • Keystone Brewers, Inc.
  • Keystone Coal and Coke Company
  • Keystone Construction Company
  • Keystone Drydock
  • Keystone Engineering Consultants
  • Keystone Generation Station
  • Keystone Pipe and Supply
  • Keystone Plantation
  • Keystone Portland Cement Company
  • Keystone Power Plant
  • Keystone Power Station
  • Keystone Project
  • Keystone Roofing Company
  • Keystone Woolen Mills
  • Kibbe, Chaffie and Company
  • Kim-Bob Construction
  • King of Prussia Shopping Center
  • Kingan and Company, Limited
  • Kingston Coal Company
  • Kittanning Brick and Fire Clay Company
  • Kittanning Ceramics Company
  • Kittanning Plate Glass Company
  • Knoblit – Richmond Street
  • Kolnile Brewing Company
  • Koppel Plant
  • Koppel Steel Company
  • Koppel Steel Company
  • Koppers
  • Koppers
  • Koppers Company
  • Koppers Company Inc
  • Koppers Company, Inc.
  • Koppers Company, Inc.
  • Koppers Company, Inc.
  • Koppers Company, Inc.
  • Koppers Company, Inc.
  • Koppers Company, Inc.
  • Koppers Company, Inc.
  • Koppers Company, Inc.
  • Koppers Pittsburgh Company
  • Koppers Research Lab
  • Korvettes Shopping Center
  • L & R Construction
  • L C Anderson
  • L-Air Liquide
  • L. Goldstein’s & Sons, Inc.
  • L. Laveson and Son
  • L. Winterer
  • L.A. Riley and Company
  • L.H. Parke Company
  • L.H. Prentice Company
  • L’Sonnebarn Sons Inc
  • La Belle Works
  • La Brum School
  • Labor Products and Ice Company
  • Lackawanna and Wyoming Valley Railroad
  • Lackawanna Iron and Coal Company
  • Lackawanna Iron and Steel
  • Lackawanna Iron and Steel Company
  • Lackawanna Light Company
  • Lackawanna Valley Electric Lt and Power Company
  • Laco Applicators, Inc.
  • Laco-Mcmullen Company, Inc.
  • Laddie Boy Dog Food Company
  • Lafayette College
  • Lafayette Hotel
  • Lakens Iron and Steel Company
  • Lancaster City Water Department
  • Lancaster Cork Works
  • Lancaster County Railway and Light Company
  • Lancaster Malleable Castings Company
  • Lancaster Water Works
  • Lancaster YMCA
  • Lance Colliery 11
  • Land Title and Trust Company
  • Lankenau Hospital
  • Lansdale Tube
  • Latrobe Area Hospital
  • Latrobe Brewing Company
  • Latrobe Construction
  • Latrobe Electric Steel Company
  • Latrobe Forge & Spring, Inc.
  • Latrobe Hospital
  • Latrobe Steel Company
  • Latrobe Steel Works
  • Laurel Run Coal Company
  • Lava Crucible Refractories
  • Lavino Furnace Company
  • Lavino Shipping Company
  • Leader Publishing Company
  • League Island
  • Leamy Home Mount Airy
  • Lebanon Blast Furnace Company
  • Lebanon City County Building
  • Lebanon Concentrator Plant
  • Lebanon Furnance Company
  • Lebanon Steam Company
  • Lebanon Valley College
  • Lebanon Valley Iron Works
  • Lebanon Valley Str. Railway. Company
  • Lee Hospital
  • Lee Rubber & Tire Company
  • Leeds & Northrup
  • Lehigh and Wilkes Barre Coal Company
  • Lehigh and Wilkes Barre Coal Company
  • Lehigh and Wilkes Barre Coal Company
  • Lehigh Car Wheel and Axle Company
  • Lehigh Coal and Navigation Company
  • Lehigh Coal and Navigation Company
  • Lehigh Coal Navigation Company
  • Lehigh Coke Company
  • Lehigh County Courthouse
  • Lehigh Engineering
  • Lehigh Engineering Company
  • Lehigh Engineering Company
  • Lehigh Industrial Power Company
  • Lehigh Manufacturing Company
  • Lehigh Material Company
  • Lehigh Navigation Electric Company
  • Lehigh Pipe Shop
  • Lehigh Portland Cement Company
  • Lehigh Portland Cement Company
  • Lehigh Portland Cement Company
  • Lehigh University
  • Lehigh Valley Coal Company
  • Lehigh Valley Coal Company
  • Lehigh Valley Coal Company
  • Lehigh Valley Coal Company
  • Lehigh Valley Coal Company
  • Lehigh Valley Coal Company
  • Lehigh Valley Coal Company
  • Lehigh Valley Cooperative Farmers
  • Lehigh Valley Dairy Farms
  • Lehigh Valley International Airport (ABE)
  • Lehigh Valley R. R.
  • Lehigh Valley Railroad Company
  • Lehigh Valley Transit Company
  • Lehigh Water Company
  • Lehigh Wilkes Barr Coal Company
  • Lehigh Wilkes Barre Coal Company
  • Lehigh Wilkes Barre Coal Company
  • Lehigh Wilkesbarre Coal Company
  • Lehighs Northampton Gas Electric Company
  • Leicester Continental Mills Company
  • Leidy School
  • Leisenring and Company
  • Lenape Forge Inc
  • Leonard Brothers
  • Lester Industrial Building
  • Leston Company
  • Lewis Block & Supply Company
  • Lewis Elkin Elementary
  • Lewis Foundry & Machine Company
  • Lewis S. Cox and Company
  • Lexington Mead Corporation
  • Liberty Bell Racetrack
  • Liberty Building & Heating
  • Liberty Coca-Cola Beverages
  • Liberty Manufacturing, Inc.
  • Liggett and Myers Tobacco Company
  • Limbach Holdings, Inc.
  • Limbach S Pgh Water Company
  • Lincoln Coal and Coke Company
  • Lincoln H.S.
  • Lincoln Liberty Building
  • Linde Air Products Company
  • Linde Air Products Company
  • Linde Air Products Company
  • Linde Air Products Company
  • Linde Air Proudcts Company
  • Linde Company
  • Linde Company
  • Lindner Shoe Company
  • Lindner Shoe Company
  • Lindy Asphalt Plant
  • Line Company
  • Link Belight Engineering Company
  • Link Belt Engineering Company
  • Link Belt Engineering Company
  • Liquid Carbonic Acid Manufacturing Company
  • Liquid Carbonic Corporation
  • Little Sisters of the Poor
  • LJ Land, Inc.
  • Lochiel Rolling-Mill Company
  • Lockhart Iron and Steel Company
  • Logan Iron and Steel Company
  • Long Publishing Company
  • Longmead Iron Company
  • Longshoremans Union – Local 1291
  • Longstreth Elementary School
  • Loos & Dilworth
  • Loose-Wiles Biscuit Company
  • Lorain Steel Company
  • Lorenz & Sons
  • Lorenz Heat Treating
  • Louis B. Orlowitz Plumbing Supply
  • Louis Kraemer & Co.
  • Lovekin Trageser Division
  • Lovekin Water Heater Company
  • Lovell Manufacturing Company
  • Lower Merion High School
  • Lower Works
  • Ltv Sheet and Tube
  • Ltv Steel
  • LTV Steel Pittsburgh Works
  • Lucent Technologies, Inc.
  • Lucent Technologies, Inc.
  • Lucerne Mines
  • Luden’s, Inc.
  • Ludlow Elementary School
  • Luke Fidler Colliery
  • Lukens Iron and Steel Company
  • Lukens Steel Company
  • Lupton Manufacturing Company
  • Luzerne County Gas and Electric Company
  • Lycoming Edison Company
  • Lycoming Electric Company
  • Lycoming Rubber Company
  • Lytle Coal Company
  • M. and W.H. Nixon Paper Company
  • M. L. Bayard and Company
  • M. S. A. Research Center
  • M. Schnoll & Sons
  • M. Winter Brothers Brewing Company
  • M.H. Detrick
  • M.H. Pickering Co.
  • M.T. Seakite
  • M&G Industrial Associates, Inc.
  • Mabel Furnace
  • Mac Service Incorporated
  • Machine Shop
  • Machold and Riddell
  • Mack Axe Works
  • Mack Truck
  • Mack Warehouse
  • Mackintosh-Hemphill Company
  • Magee Carpet Company
  • Maginn Building
  • Mahoning Rolling Mill Company
  • Mahoning Valley Iron Company
  • Majestic Apartment House
  • Mall Office Building
  • Malthby Colliery
  • Manayunk
  • Manchester Station
  • Manganese Steel Forge Company
  • Mann Brothers
  • Marathon Company
  • Marcal Paper Mills, Inc.
  • Marcus Hook Plant
  • Marietta Metal Products Corporation
  • Marker & Sons
  • Marks Brothers
  • Marlsbary Manufacturing Company
  • Marquette Cement
  • Marquette Cement Manufacturing Company
  • Marsden T J Company
  • Marshall Brothers and Company
  • Marshall-Kennedy Milling Company
  • Martin and W H Nixon
  • Martin and Wm Nixon Paper Company
  • Martin Luther King Junior School
  • Martins Creek Powerhouse
  • Mary Street Project
  • Maryd Coal Company
  • Maryland Steel Company
  • Marywood College
  • Marywood University
  • Masland Duraleather Company
  • Masonic Temple
  • Masonry Construction Company
  • Masonry Inc
  • Matrix North American Construction
  • Matthiessen and Hegeler Zinc Company
  • Mauch Chunk Crystal Ice Company
  • Mauch Chunk H. Power and Electric Light Company
  • Mauch Chunk Lehighton and Slatington Railway Company
  • Mauch Chunk, Lehighton and Slatington Street Railway Company
  • Max and Levy Building
  • Max Brockton Textile Company
  • Maxwell Colliery
  • Maxwell Colliery
  • Mayview State Hospital
  • Mc Avey Brick Company
  • McArdle & Cooney, Inc.
  • McCahan Sugar Refining and Molasses Company
  • Mccarter Iron Works
  • Mccarters Iron
  • McClaskey & Company
  • Mcclintic Marshall Constr Company
  • Mcclintic-Marshall Construction Company
  • McCloskey Construction
  • McCloskey Varnish Company
  • Mcclure Company
  • Mcconnell Asbesto and Covering Company
  • McConway & Torley, LLC
  • McCracken Stark and Company
  • Mccreary Tire & Rubber Company
  • McCullough Iron Company
  • McDaniel & Harvey Company
  • McEnery Company
  • Mcgraw Edison Company
  • Mcgraw-Edison
  • McGraw-Edison Company
  • Mcgraw-Edison Power Systems
  • Mcgrew Parkinson and Company
  • McKay Company
  • Mckean, Newhall and Borie
  • Mckee Division
  • McKees Rocks Ind Enterprises
  • McKeesport and Youghiogheny Ice Company
  • McKeesport Hospital
  • McKeesport Manufacturing Company
  • McKeesport Tin Plate Company
  • McKeesport Water and Light Company
  • McKeesport Water Purification Works
  • McKeesport Works
  • McKinley Elementary School
  • McKinney Manufacturing Company
  • Mclanahan Corporation
  • Mclaughlin Brothers
  • Meadowvale School
  • Mechanical Insulation Company
  • Medford’s Inc.
  • Medical College of Pennsylvania School
  • Medium Voltage Switchgear Department
  • Medusa Cement Company
  • Medusa Portland Cement Company
  • Mellon National Bank Building
  • Mens House of Detention
  • Mercer County Light Company
  • Merchant Shipbuilding Corporation
  • Merchants Coal Company
  • Merck and Company
  • Merck and Company Inc
  • Merck Chemical
  • Merck, Sharp and Dohme
  • Mercy Douglas Hospital
  • Mercy Hospital
  • Merion and Radnor Gas and Electric Company
  • Mermount Gardens
  • Merrick Chemical Plant
  • Merritt Chapman & Scott
  • Mesta Machine Company
  • Mesta Machine Company
  • Mesta Machine Corp
  • Metropolitan Edison Company
  • Metropolitan Edison Company
  • Metropolitan Edison Company
  • Metropolitan Edison Company (Met-Ed)
  • Metropolitan Edison Company Dock St. Station
  • Metropolitan Edison Power Plant
  • Metropolitan Edison, Three-Mile Island
  • Metropolitan Hospital
  • Michael Flynn Manufacturing
  • Michigan Chemical Company
  • Middle Creek Electric Company
  • Middletown Air Force Base
  • Middletown Car Company
  • Middletown Car Works
  • Middletown Elementary School
  • Midland Steel Company
  • Midland Works
  • Midland-Ross Corporation
  • Midvale Company
  • Midvale Company
  • Midvale Heppenstall Company
  • Midvale Heppenstall Company
  • Midvale Steel and Ordnance Company
  • Midvale Steel and Ordnance Company
  • Midvale Steel Company
  • Midvale Steel Company
  • Midvalee Heppenstall Company
  • Midvalley Coal Company
  • Midvalley Coal Company
  • Midvalley Coal Company
  • Midwest Generation
  • Milco Undergarment Company
  • Mill Creek Power House
  • Mill Equipment & Engineering Corporation
  • Millard Quarry
  • Millbourne Mills
  • Millcreek Mall
  • Millcreek School District
  • Miller Coal & Coke Company
  • Miller Robert L
  • Milliken Hospital Boiler Room
  • Milton Manufacturing Company
  • Minard Run Oil Company
  • Mine Safety Appliance Company
  • Mine Safety Appliance Company
  • Mine Safety Appliance Company
  • Mineral Railroad and Mining Company
  • Mineral Railway and Mining Company
  • Mineral Spring Colliery
  • Minnepolis Honeywell Regulator Company
  • Minnesota Mining & Manufacturing Company
  • Minnotte Brothers Company
  • Mira Bell, Inc.
  • Miseracordia
  • Mitchell Power Station
  • Mitchell Power Station
  • Mitchell, Fletcher and Company
  • Mobay Chemical Corporation
  • Mobil
  • Mobil Oil Company
  • Model Laundry and Dry Cleaning Company
  • Mohawk Valley Brewing Company
  • Mohoningtown Shops
  • Mon Valley Works – Irvin Plant
  • Monessen Works
  • Monongahela & Ohio Dredging Company
  • Monongahela Connecting Railroad Company
  • Monongahela Electric Light Company
  • Monongahela Furnaces
  • Monongahela Incline Plane Company
  • Monongahela Light and Power Company
  • Monongahela Natural Gas Company
  • Monongahela Power Company’S
  • Monongahela Power Station
  • Monongahela Railway Company
  • Monongahela River Consolidated Coal and Coke Company
  • Monougahela Melting Company
  • Monroeville High School
  • Monroeville Mall
  • Monsanto Chemical Company
  • Monsey Products Company
  • Montefiore Hospital
  • Montgomery Iron Company
  • Montour Cty
  • Montour Power Plant
  • Montour Steel and Iron Company
  • Moore College of Art
  • Moorhead Brothers and Company
  • Moorhead Brothers, Inc.
  • Moravian College
  • Morganthaler Brothers
  • Morgenthaler Ice Manufacturing Company
  • Moro Phillips
  • Morrell Felin Meat Packers
  • Morris School
  • Moss Rehabilitation Hospital
  • Mother of Divine Grace
  • Mount Morich
  • Mount Sinai Hospital
  • Mount St. Joseph Academy
  • Mount. Lookout Coal Company
  • Mrs. Paul’s Frozen Foods
  • Muhlenberg High School
  • Municipal Hospital
  • Municipal Services Building
  • Munition Plant
  • Murray Body Corporation
  • Mutual Chemical Division of Allied Chemical and Dye
  • Mutual Rendering Company
  • N. and G. Taylor Company
  • N. Snellenburg and Company
  • N.R.S. Yewdall
  • Nabisco
  • Nat. Tube Works. Company
  • National Airoil Burner Company
  • National Aniline and Chemical Company
  • National Aniline Division – Uss Chemicals
  • National Biscuit Company
  • National Biscuit Company
  • National Bond Insulators, Inc.
  • National Borax Company
  • National Casket Company, Inc.
  • National Casting
  • National Container Company
  • National Crucible Company
  • National Electric Products Corp
  • National Foam Company
  • National Forge and Ordnance Company
  • National Galvanizing L.P.
  • National Galvanizing Works
  • National Gypsum Company
  • National Heat & Power
  • National Lead and Oil Company of Pennsylvania
  • National Lead Company
  • National Lead Company
  • National Malleable
  • National Mine Service Co.
  • National Molasses
  • National Radiator Company
  • National Rolling Mill
  • National Steel Company
  • National Steel Company
  • National Steel Corporation
  • National Steel Service Center, Inc.
  • National Sugar Refinery Company
  • National Supply Co.
  • National Supply Company
  • National Supply Company
  • National Tube
  • National Tube Company
  • National Tube Company
  • National Tube Company
  • National Tube Works
  • National Tube Works Company
  • National Valve
  • Natural Gas Pipeline
  • Naval Air Station
  • Naval Air Station
  • Naval Aviation Supply Depot
  • Naval Dry Dock
  • Naval Ordnance Works
  • Naval Ship Engineering Center
  • Naval Supply Depot
  • Naval Supply Depot
  • Navy Propulsion Plant
  • Navy Yard Dry Dock
  • Nazareth Cement Company
  • Nazareth Hospital
  • Nazareth Portland Cement Company
  • Nazareth Steel Fabricators
  • Neatsfoot Oil Refineries
  • Nelson Valve Company
  • Nesbitt Manufacturing Company
  • Neville Chemical Company
  • Neville Chemical Company
  • Neville Island Coke & Chemical
  • Neville Street Apartments
  • New Castle Electric Company
  • New Castle L.H.And Power Company
  • New Castle Plant
  • New Castle Portland Cement Company
  • New Castle Shovel Company
  • New Castle Stamp’G Company
  • New Castle Station
  • New Castle Water Company
  • New Federal Office Building
  • New Jersey Mills
  • New Pellet Plant
  • New River Pocahontas Consolidated Coal Company
  • New Steel Building
  • New York & Pennsylvania Company, Inc.
  • New York & Pennsylvania Company, Inc.
  • New York Philadelphia and Norfolk Railway Company
  • New York Shipbuilding Company
  • New York State Electric & Gas Corporation
  • New York State Natural Gas
  • New York Wire Cloth Company
  • New York Wire Works Building
  • Newark Processing Company
  • Newman & Company, Inc.
  • Newton Coal Mining Company
  • Nice Ball Bearing Company
  • Nicetown Plate Washer Company
  • Nicetown Station
  • Nicholson File Company
  • Nickel Plumbing & Heating, Ltd.
  • Nicolet Industries Inc.
  • Niles Bement Pond Company
  • Niles Bement Pond Company
  • Niles Building
  • Nixon Theatre
  • Noah Barlow
  • Norfolk & Western Railway
  • Norland Shipping & Trading Company
  • Norris Smelting & Refining
  • Norristown Hospital
  • Norristown Magnesia and Asbestos Company
  • Norristown Municipal Sanitation Department
  • Norristown Post Office
  • Norristown State Hospital
  • North 1 Shaft
  • North 2 Shaft
  • North 4 Colliery
  • North American Lace Company
  • North Branch Steel Company
  • North Brother’s Manufacturing Company
  • North Brothers Company
  • North Cornwall Furnace Company
  • North Huntington Twp High School
  • North Pipe Shop
  • North Reserve Basin
  • North Side of Industrial Highway
  • North Side Packing Company
  • Northampton Traction Company
  • Northern Ore Company
  • Northview Heights
  • Northview Heights Elementary School
  • Northwest Collery
  • Northwestern Penna Railway Company
  • Nosco Plastics, Inc.
  • Nottingham Colliery 15
  • Novingers, Inc.
  • Number 2 Shaft Colliery
  • Number 3 Boilder House
  • Number 3 Rollilng Mill
  • Number 4 Breaker
  • Number 4 Colliery
  • Number 4 Rolling Mill
  • Number 5 and Number 6 Blast Furnace
  • Number 8 Grutier Mill
  • Nutrition Products
  • Nuttall Gear
  • O.F. Zurn
  • O’Brien Machinery Company
  • O’Brien Rubber Thread and Webbing Company
  • Oak Summit Apartments
  • Occidental Chemical
  • Ocean Coal Company
  • Ohio & Pittsburgh Milk Company
  • Ohio Pennsylvania System
  • Oil City Glass Company
  • Old Forge Breaker
  • Old Forge Collieries
  • Old Fourth Ward School
  • Old Meadow Works
  • Oldman Boiler Works, Inc.
  • Olin Mathieson Chemical Corporation
  • Oliver & Snyder Steel Company
  • Oliver and Roberts Wire Company
  • Oliver and Snyder Steel Company
  • Oliver Building
  • Oliver Iron and Steel Corporation
  • Oliver Iron Mining Company
  • Oliver Wire Company
  • Olmstead Air Force Base
  • Olney High School
  • Olsen Engineering, Inc.
  • Olyphant Colliery
  • Olyphant Power Plant
  • Onderdonk Heating and Ventilating Company
  • Open Hearth Div
  • Open Hearth Plant
  • Orient Coal and Coke Company
  • Orinoka Mills
  • Orion Power Holdings Inc
  • Orion Power Holdings Inc
  • Orr & Sembower, Inc.
  • Osborn Machine Company
  • Oscar Meyer Meats
  • Otis Steel Company
  • Our Lady of Mercy Academy
  • Our Lady of Mercy School
  • Our Lady of Mt Carmel Convent
  • Overbroock Steam Heat Company
  • Owens Corning Fiberglass
  • Owens-Corning Fiberglas Corporation
  • Owens-Corning Fiberglas Corporation
  • Owens-Illinois Glass Company
  • Owens-Illinois Glass Company
  • Ozenda Smokeless Coal Company
  • P & L
  • P P & L Office Building
  • P P G Industries Inc
  • P. McGraw and Wool Company
  • P. McGraw Wool Company
  • P.F. Magin & Sons
  • P.G.H. Steamline
  • P.H. Berman & Sons
  • P.H. Glatfelder Company
  • P.H. Glatfelter Corporation
  • P.J. Ritter Company
  • PA Forge Division of Chertron Corporation
  • PA Institute for the Instruction of the Blind
  • Pacor
  • Page Steel & Wire Company
  • Page Woven Wire Fence Company
  • Palmerweld Fabricating Company
  • Pangborn Corporation
  • Pangborn Corporation
  • Paper Manufacturing Company
  • Papercraft Plant
  • Park City Center
  • Park Hotel
  • Parkersburg Iron & Steel Company
  • Parkview Court Apts
  • Parkway Apartments
  • Paterson Parchment Paper Company
  • Paxton Iron and Steel Company
  • Peabody Vertical Air Heater
  • Peach Bottom Nuclear Power Plant
  • Peachbottom Nuclear Plant
  • Pearson Manufacturing Company
  • Peckerman Company
  • Peco Chemical
  • Peco Cromby Station Powerhouse
  • PECO Delaware Station Powerhouse
  • Peco Eddystone Station Powerhouse
  • PECO Energy Company
  • Peco-Barbados Island Powerhouse
  • Peerless Dye Company
  • Pencoyd Iron Works
  • Pencoyd Iron Works
  • Penelec Power Plant
  • Penn Allen Port Cement Company
  • Penn Argyl High School
  • Penn Bradford Company
  • Penn Bradford Company
  • Penn Center
  • Penn Central Light and Power Company
  • Penn Dairies
  • Penn Dixie Cement Company
  • Penn Fishing
  • Penn Gas Coal Company
  • Penn Hardware Company
  • Penn Heat and Power Company
  • Penn High School
  • Penn Jersey Transmission Corporation
  • Penn Middle School
  • Penn Optical
  • Penn Power & Light Company
  • Penn Public Service Corp
  • Penn Public Service Corp
  • Penn Range Company
  • Penn Shipbuilding
  • Penn State Health St. Joseph’s Hospital
  • Penn State University
  • Penn Tech
  • Penn Treaty American Corporation
  • Penn Treaty Overall
  • Penn-Allen Cement Company
  • Penn-Mo Fire Brick Company
  • Penn-Mo Fire Brick Company
  • Penna Bolt and Nut Company
  • Penna Gas Coal Company
  • Penna Power & Light Company
  • Penna. Water Company
  • Pennsalt Chemical Company
  • Pennsalt Chemicals Corp
  • Pennsbury Pottery Company
  • Pennslyvania Electric Company
  • Pennsylvania Academy of Fine Arts
  • Pennsylvania Bolt and Nut Company
  • Pennsylvania Brake Beam Company
  • Pennsylvania Cement Company
  • Pennsylvania Central Railroad
  • Pennsylvania Chocolate Company
  • Pennsylvania Coal Company
  • Pennsylvania Coal Company
  • Pennsylvania Coal Company
  • Pennsylvania Coal Company
  • Pennsylvania Coal Company
  • Pennsylvania Coal Company Underwood Mine
  • Pennsylvania Cola Company
  • Pennsylvania Electric Company
  • Pennsylvania Electric Company
  • Pennsylvania Electric Company
  • Pennsylvania Electric Company
  • Pennsylvania Electric Company
  • Pennsylvania Electric Company
  • Pennsylvania Electric Company
  • Pennsylvania Electric Company (Penelec)
  • Pennsylvania Farm Show Complex & Expo Center
  • Pennsylvania Fruit
  • Pennsylvania Gas & Water Company
  • Pennsylvania Gas Company
  • Pennsylvania General Insurance Company
  • Pennsylvania Governor’s Mansion
  • Pennsylvania Hospital
  • Pennsylvania Industrial Chemical Company
  • Pennsylvania Industrial Chemical Company
  • Pennsylvania Industrial Lubricant Manufacturers
  • Pennsylvania Iron Company
  • Pennsylvania Leightweight Aggregate
  • Pennsylvania Light and Power Company
  • Pennsylvania Light, Heat and Power Company
  • Pennsylvania Malleable Company
  • Pennsylvania Manufacturing, Light and Power Company
  • Pennsylvania Mutual Building
  • Pennsylvania Mutual Insurance Company
  • Pennsylvania Power & Light
  • Pennsylvania Power & Light
  • Pennsylvania Power & Light Company
  • Pennsylvania Power & Light Company
  • Pennsylvania Power & Light Company
  • Pennsylvania Power & Light Company
  • Pennsylvania Power & Light Company
  • Pennsylvania Power & Light Company
  • Pennsylvania Power & Light Company (PPL)
  • Pennsylvania Power & Light Company (PPL)
  • Pennsylvania Power and Light Company
  • Pennsylvania Power and Light Company
  • Pennsylvania Power Company
  • Pennsylvania Power Company
  • Pennsylvania Pulp and Paper Company
  • Pennsylvania Railroad
  • Pennsylvania Railroad
  • Pennsylvania Railroad
  • Pennsylvania Railroad Company
  • Pennsylvania Railroad Company
  • Pennsylvania Railroad Company
  • Pennsylvania Railroad Company
  • Pennsylvania Railroad Company
  • Pennsylvania Railroad Company
  • Pennsylvania Railroad Office
  • Pennsylvania Railroad Samuel Rea Car Repair Shop
  • Pennsylvania Range Boiler
  • Pennsylvania Rubber Company
  • Pennsylvania Rubber Company
  • Pennsylvania Rubber Company
  • Pennsylvania Smelting & Refining Company
  • Pennsylvania State Capitol Complex
  • Pennsylvania State College
  • Pennsylvania State Education Association Building
  • Pennsylvania State Hospital
  • Pennsylvania State Office Building
  • Pennsylvania State Parks
  • Pennsylvania Steel Company
  • Pennsylvania Steel Company
  • Pennsylvania Steel Company
  • Pennsylvania Steel Company
  • Pennsylvania Steel Mill
  • Pennsylvania Sugar Company
  • Pennsylvania Utilities Company
  • Pennsylvania Utilities Investment Corporation
  • Pennzoil
  • Pennzoil Refinery
  • Pennzoil Refining Company
  • People Traction Company
  • People’s Bank Building
  • Peoples Bank
  • Peoples Coal Company
  • Peoples Consolidated Service Corptn
  • Peoples Construction
  • Peoples Electric Light Heat and Power Company
  • Peoples Ice Light and Storage Company
  • Peoples Incandescent Light and Power Company
  • Peoples Land Company, LLC
  • Peoples Natural Gas Company
  • Peoples Savings Bank Building
  • Peoples St. Railway Company
  • Peoples St. Railway Company
  • Pep Boys
  • Perlstein Glass Company
  • Perma Company, Inc.
  • Perry Iron Company
  • Peter F. Loftus Engineering
  • Peters and Company
  • Peters Packing Company
  • Petroleum Iron Works
  • Petroleum Reclamation Company
  • Pfizer Inc.
  • PGW
  • Phil Ellena Street and Chew Avenue
  • Phila and Reading
  • Phila Suburban Gas and Electric Company
  • Philadelphia and Reading Coal and Iron Company
  • Philadelphia and Reading Coal and Iron Company
  • Philadelphia and Reading Railroad Company
  • Philadelphia and Reading Railway
  • Philadelphia and Reading Subway
  • Philadelphia Aquatic Club
  • Philadelphia Bank Building
  • Philadelphia Board of Education
  • Philadelphia Brewing Company
  • Philadelphia Burner Service
  • Philadelphia City Hall
  • Philadelphia Coke Company
  • Philadelphia College of Pharmacy
  • Philadelphia Company
  • Philadelphia Convention Hall
  • Philadelphia County Prison
  • Philadelphia Dry Yeast
  • Philadelphia Dye Works
  • Philadelphia Electric
  • Philadelphia Electric
  • Philadelphia Electric
  • Philadelphia Electric Company
  • Philadelphia Electric Company
  • Philadelphia Electric Company
  • Philadelphia Electric Company
  • Philadelphia Electric Company
  • Philadelphia Electric Plant
  • Philadelphia Electric Powerhouse
  • Philadelphia Engineering Company
  • Philadelphia Exposition
  • Philadelphia Fire Department
  • Philadelphia Forge Company
  • Philadelphia Gas & Electric
  • Philadelphia Gas Works Company
  • Philadelphia General Hospital
  • Philadelphia Greyhound Terminal
  • Philadelphia Group
  • Philadelphia Hospital for the Insane
  • Philadelphia Housing Authority
  • Philadelphia Incinerator
  • Philadelphia Inquirer
  • Philadelphia International Airport
  • Philadelphia Ironworks
  • Philadelphia Museum
  • Philadelphia Naval Shipyard (Navy Yard)
  • Philadelphia Piping & Equipment Company
  • Philadelphia Protectory For Boys
  • Philadelphia Psychiatric Hospital
  • Philadelphia Public Library
  • Philadelphia Quartz Company
  • Philadelphia Quartz Company
  • Philadelphia Rapid Transit Company
  • Philadelphia Rapid Transit Company
  • Philadelphia Reading Corp
  • Philadelphia Resin Company
  • Philadelphia Roll & Machine
  • Philadelphia Rubber Works. Company
  • Philadelphia Rust
  • Philadelphia S&C 10
  • Philadelphia School District
  • Philadelphia Steam Heating Company
  • Philadelphia Street Hospital
  • Philadelphia Suburban Gas and Electric Company
  • Philadelphia Suburban Water Company
  • Philadelphia Tapestry Mills
  • Philadelphia Traction Company
  • Philadelphia Zoo
  • Philip Cary Manufacturing Company
  • Phillip Carey
  • Phillip Carey Manufacturing Company
  • Phillips Power Station
  • Phoenix Cement Company
  • Phoenix Glass Company
  • Phoenix Glass Company
  • Phoenix Iron & Steel Company
  • Phoenix Iron and Steel Company
  • Phoenix Iron Company
  • Phoenix Steel Corp
  • Phoenix Utility Company
  • Phoenixville Hospital
  • Phoenixville Incinerator
  • Phoenixville Steel
  • Physical Test Labs.
  • Physicians and Dentist Building
  • Pickett Middle School
  • Pilot Plant Division
  • Pine Knot Colliery
  • Pittron
  • Pitts. McKeesport and Westmoreland St. Railway Company
  • Pittsburg Coke & Chemical Company
  • Pittsburg Metal Process
  • Pittsburg Plate Glass Company
  • Pittsburgh & Conneaut Dock Company
  • Pittsburgh & Lake Erie Railroad (P&LE)
  • Pittsburgh Activated Carbon Company
  • Pittsburgh Activated Carbon Company
  • Pittsburgh Allegheny County Thermal Complex
  • Pittsburgh and Birmingham Traction Company
  • Pittsburgh and Lake Erie Railroad
  • Pittsburgh and West End Passenger Railway Company
  • Pittsburgh Athletic Association
  • Pittsburgh Brewing Company
  • Pittsburgh Buffalo Company
  • Pittsburgh Coke & Chemical Company
  • Pittsburgh Coke & Chemical Company
  • Pittsburgh Coke & Iron Company
  • Pittsburgh Coke and Chemical Company
  • Pittsburgh Consolidation Coal Company
  • Pittsburgh Corning Glass Plant
  • Pittsburgh Crucible Steel Company
  • Pittsburgh Crucible Steel Company
  • Pittsburgh Ferromanganese Company
  • Pittsburgh Flooring
  • Pittsburgh Forge and Iron Company
  • Pittsburgh Forge and Iron Company
  • Pittsburgh Gas and Coke Company
  • Pittsburgh Gateway Center
  • Pittsburgh Gear Company
  • Pittsburgh International Airport (PIT)
  • Pittsburgh International Airport Air Reserve Station
  • Pittsburgh Iron and Steel Engineering Company
  • Pittsburgh Lake Erie Railroad Company
  • Pittsburgh Malleable Iron Company
  • Pittsburgh Mechanical Systems, Inc.
  • Pittsburgh Metal Processing Company
  • Pittsburgh Milling Company
  • Pittsburgh Mills
  • Pittsburgh Plate Glass
  • Pittsburgh Plate Glass Company
  • Pittsburgh Plate Glass Company
  • Pittsburgh Plate Glass Company
  • Pittsburgh Plate Glass Company
  • Pittsburgh Plate Glass Company
  • Pittsburgh Plate Glass Industries
  • Pittsburgh Post-Gazette Building
  • Pittsburgh Press
  • Pittsburgh Provision and Packing Company, Inc.
  • Pittsburgh Public Schools’ Board of Education
  • Pittsburgh Railways
  • Pittsburgh Railways Company
  • Pittsburgh Reduction Company
  • Pittsburgh Reduction Company
  • Pittsburgh Rochester Coal
  • Pittsburgh Screw & Bolt Company
  • Pittsburgh Screw and Bolt Company
  • Pittsburgh Seamless Tube Company
  • Pittsburgh Shear Knife & Machine Co.
  • Pittsburgh Steamship Company
  • Pittsburgh Steel
  • Pittsburgh Steel Company
  • Pittsburgh Steel Company
  • Pittsburgh Steel Corp
  • Pittsburgh Steel Foundry
  • Pittsburgh Steel Foundry
  • Pittsburgh Terminal Coal Company
  • Pittsburgh Terminal Coal Company
  • Pittsburgh Terminal Warehouse and Transfer Company
  • Pittsburgh Thermal Limited Partnership
  • Pittsburgh Tool Steel Wire
  • Pittsburgh Tube Company
  • Pittsburgh VA Medical Center
  • Pittsburgh Valve & Fitting Company, Inc.
  • Pittsburgh Wire & Cable, Inc.
  • Pittsburgh Wire Company
  • Pittsburgh Works
  • Pittsburgh-Des Moines Steel Company
  • Pittsburgh, Cincinnati, Chicago and St. Louis Railroad (PCC & St. L Railroad)
  • Pittsburgh, McKeesport & Youghiogheny Railroad
  • Plant #2
  • Plant Insulation Company
  • Plaza Apartments
  • Plymouth Coal Company
  • PNB Building
  • Point Breeze Gas Works
  • Point Breeze Refinery
  • Pollock School
  • Pope Tin Plate Company
  • Potlach Paper Mill
  • Potomac Water Treatment & Power Plant
  • Potter Sons and Company
  • Pottsgrove School
  • Pottstown Hosp.
  • Pottstown Iron Company
  • Pottstown Plant
  • Pottsville Area Middle School
  • Pottsville Hospital
  • Pottsville Iron and Steel Company
  • Pottsville Water Company
  • Pottsville Water Company
  • Powelton Electric Company
  • Powelton Gardens
  • Power Atomic Power Station
  • Power House
  • Power Piping Company
  • Powers Weightman Rosengarten Company
  • PPG Industries
  • PPG Industries International, Inc.
  • PPL Corporation
  • Precision Grinding Company
  • Precision Grinding Wheel
  • Precision Products Company
  • Presbyterian Church
  • Presbyterian Home for Widows and Single Women
  • Presbyterian Hospital
  • Pressed Steel Car Company
  • Pressed Steel Car Company
  • Pressed Steel Car Company
  • Prestolite Battery
  • Progressive Manufacturing Company
  • Prospect Colliery
  • Providence Hospital
  • Pubicker Industries
  • Public Ledger Building
  • Public School
  • Public Service Corporation of New Jersey
  • Public Service Gas Company
  • Publicker Industries, Inc.
  • Publickers Distillery
  • Pullman Standard Car Manufacturing Company
  • Punxsutawney Elementary School
  • Punxsutawney Secondary School
  • Pure Oil Company
  • Purex Corporation
  • Quaker Boiler Repairing Company
  • Quaker Chemical Corporation
  • Quaker City Chocolate Company
  • Quaker City Dye Works
  • Quaker Export Packaging Company, Inc.
  • Quaker State Machine Company
  • Quaker State Metals Company
  • Quakertown Brick & Tile Company
  • Quakertown Electric Department
  • Quakertown Tractor Company
  • Queen City Cleaners
  • Quickway, Inc.
  • QuinT Paper Company
  • R L Miller
  • R. and H. Simon
  • R. Heckscher and Sons
  • R. K. Laros Silk Company
  • R.B. Murray Oakland Arcade Company
  • R.C. Remmey Division
  • R.C.A.
  • R.C.A. Building
  • R.D. Isaacs and Son
  • R.D. Wood Building
  • R.J. Carey Company
  • R.M. Armstrong
  • Racquet Club East Apts
  • Railway Specialties
  • Railway Spring and Manufacturing Company
  • Railway Steel Spring Company
  • Rainey Wood Coke Corp
  • Rankin Station
  • Raybestos Manhattan Plant
  • RCA Victor Company, Inc.
  • Reading Company
  • Reading Hospital
  • Reading Iron Company
  • Reading Iron Company
  • Reading Metals Refining Company
  • Reading Railroad
  • Reading Railroad Company
  • Reading Shale Brick Company
  • Reading Transportation Company
  • Reading Tube Corp.
  • Reading Water Bureau
  • Reading Water Works
  • Real Estate Trust Company
  • Real Estate Trust Office Building
  • Red Lion Plant
  • Reed Danville State Hopital
  • Reed Electric Company
  • Reedsville Power Station
  • Reese Metal Products Corporation
  • Refractory & Insulation Corp
  • Reichard Coulston
  • Reichard-Coulston, Inc.
  • Reider Brothers
  • Reigner and Engle Brewing Company
  • Reisinger Prather Company
  • Reliance Cement Company
  • Reliant Energy Mid Atlantic
  • Reliant Energy Wholesale Group
  • Reliant Energy Wholesale Group
  • Remington Rand
  • Remmey Refractories
  • Remmey Refractory (A.P. Green Industries Division)
  • Rennekamp Supply Company
  • Republic I and S Company
  • Republic Iron and Steel Company
  • Republic Iron Works
  • Republic Steel Corporation
  • Reynolds Metals Company
  • Rhodia Inc
  • Richard Hecksher and Sons
  • Richard Hecksher and Sons
  • Richardson Paint Company
  • Richmond Power Plant
  • Richmond Station
  • Richmond Works
  • Rico Realty Company
  • Rieck-McJunkin Dairy Company
  • Riggs Distler
  • Rilet Stocker Corporation
  • Riley Stoker
  • Riter-Conley Manufacturing Company
  • Rittenhouse Apartments
  • Rittenhouse C & Son
  • Rittenhouse Plaza
  • Rittman Gasoline Plant
  • Ritz Carlton Hotel
  • River Toad
  • Riverview Home for the Aged
  • Roaring Springs Paper Mill
  • Robert H. Foerderer
  • Robert Packer Hospital
  • Robert Smith Ale Brewing Company
  • Robinson and Wallace
  • Robinson Clay Products Company
  • Robinson Ventilating Company
  • Robinson-Rea Manufacturing Company
  • Rochester and Pittsburgh Coal and Iron Company
  • Rochester and Pittsburgh Coal and Iron Company
  • Rochez Brothers & Supply Company
  • Rockwell Industries
  • Roebling Steel
  • Rohm & Haas Chemical
  • Rohm & Haas Chemical Company
  • Rolle Manf Company
  • Roosevelt Hotel
  • Rorborough Chestnut Hill and Morristown Railway Company
  • Rorer Group, Inc.
  • Rosedale Foundry & Machine Company
  • Rossiter McGovern Company
  • Rotoblast
  • Round House
  • Roxborough Hospital
  • Rubel Coal & Ice Corporation
  • Russian American Manufacturing Company
  • Russian American Manufacturing Company
  • Rust Boiler Company
  • Ruth Bennett Project
  • Ryder & Richmond Oil Company
  • S M S Automotive
  • S. Bern Ohio Company
  • S. Faith and Company
  • S. J. Shimer and Sons
  • S. Jarvis Adams Company
  • S. K. F. Plant Addition
  • S. Morgan Smith Company
  • S.F. Whitman Son
  • S.K.F. Industries
  • S.S. Marvin (Ship)
  • Sacred Heart Hospital
  • Saint Agnes Hospital
  • Saint James Parish
  • Saint Joseph’s School
  • Saint Paul’s Church
  • Salem Brosius Inc
  • Salem Park Townhomes
  • Sall Geo Metals Company
  • Samaritan Hospital
  • Samuel Ewart and Company
  • Sandusky Cement Company
  • Sans Corporation
  • Satellite Alloy Corporation
  • Saucon
  • Saucon Plant
  • Sauquoit Silk Manufacturing Company
  • Savage Arms Corporation
  • Savage Arms Corporation
  • Sayre Electric Company
  • Schaeffer Brewery
  • Scheie Eye Hospital
  • Schick, Inc.
  • Schmidt & Ault Paper Co.
  • Schmidt Lumber Millwork
  • Schoen Pressed Steel Company
  • Schoen Steel Wheel Company
  • Schoen Steel Wheel Company
  • Schoeneck Farms Inc.
  • School District of City Altoona
  • School District of Philadelphia
  • Schooley Colliery
  • Schutte & Koerting
  • Schutte and Koerting Company
  • Schuylkill Arsenal Property
  • Schuylkill Forge Company
  • Schuylkill Forge Company
  • Schuylkill Station
  • Schuylkill Valley Traction Company
  • Scofield Engineering Company
  • Scofield, Mason and Company
  • Scott Colliery
  • Scott Foam
  • Scott Paper Company
  • Scott Paper Company
  • Scott Paper Company
  • Scott Paper Company
  • Scottdale Iron and Steel Company
  • Scottdale Wood Products Company
  • Scranton Anthracite Briquette Company
  • Scranton Axle and Spring Co.
  • Scranton Bolt and Nut Company
  • Scranton Electric Company
  • Scranton Electric Construction Company, Inc.
  • Scranton Gas and Water Company
  • Scranton High School
  • Scranton Lace Company
  • Scranton Lace Curtain Company
  • Scranton Ordinance Division
  • Scranton Railway Company
  • Scranton Technical High School
  • Scranton-Spring Brook Water Service Company
  • Seaboard Container Corporation
  • Seaboard Steel and Manganese Corp
  • Sealtest Foods
  • Sears, Roebuck and Co.
  • Sears, Roebuck and Company
  • Sears, Roebuck and Company
  • Sears, Roebuck and Company
  • Second National Bank
  • Selden Company
  • Semet Solvay Company
  • Senior High School Building
  • Septa
  • Sewage Disposal Plant
  • Seward Power Plant
  • Seward Public School
  • SFK Industries, Inc.
  • Shady Grove School
  • Shallcross School
  • Shamokin and Coal Township Light, Heat and Power Company
  • Shamokin Light Heat and Power Company
  • Sharon Coke Company
  • Sharon Coke Company
  • Sharon Iron Company
  • Sharon Steel Company
  • Sharon Steel Corporation
  • Sharon Steel Corporation
  • Sharon Steel Hook Company
  • Sharon Tube
  • Sharon Water Works Company
  • Sharpless and Sons
  • Sharpsville Furnace Company
  • Shawville Power Station
  • Sheeling Pittsburgh Steel
  • Sheetmetal Workers Union – Local 19
  • Shelbe and Fisher
  • Shelby National Tube Company
  • Shelby Steel Tube Company
  • Shelby Steel Tube Company
  • Shelly Brothers Inc.
  • Shelocta Power Station
  • Shenango China Company
  • Shenango Furnace Company
  • Shenango Steel
  • Shenango Steel
  • Shenango Steel Buildings, Inc.
  • Shenango Valley Steel Company
  • Shenango Valley Water Company
  • Sherwood Refining Company, Inc.
  • Shipman Coal Company
  • Shipping Atomic Power Station
  • Shippingport Atomic Power Station
  • Shippingport Nuclear Power Station
  • Shipyard Philadelphia
  • Shoenberger Works
  • Shook Anderson Manufacturing Company
  • Shwartz Paper Mill
  • Signal Oil & Gas Company
  • Silverbrook Coal Company
  • Simon Gratz High School
  • Simonds Abrasive
  • Simonim Oil Company
  • Simpson and Watkins
  • Simpson and Watkins
  • Simpson and Watkins
  • Simpson and Watkins
  • Sinclair Koppers Company
  • Sinclair Koppers Company
  • Sinclair Refining Company
  • Sinclair Refining Company
  • Singer Ice Company
  • Singer Nirmick Plant
  • Sisters of the Good Shepherd
  • Sisters of the Good Shepherd
  • Skating Rink
  • SKF Ball Bearing
  • Skin & Cancer Clinic
  • Skinner Engine Company
  • Smith Brothers Iron Works
  • Smith Kline & French
  • Smith Kline & French
  • Smith Kline & French
  • Smithfield Street Terminal
  • Smoketown Elementary School
  • Snellenburg Building
  • Social Security Building
  • Solis-Cohen
  • Somerset Coal Company
  • Somerset Mills
  • Somerset Smokeless Coal Company
  • Sonneborn Div
  • South Hills High School
  • South Penn Oil Company
  • South Philadelphia High School
  • South Side Water Works
  • Southern Cambria St. Railway Company
  • Southern Kraft Div Int’L Paper Company
  • Southern Manual Training School
  • Southern Natural Gas Company
  • Southern Traction Company
  • Southmark Mills Company
  • Southwark Foundry and Machine Company
  • Southwark Station
  • Southwest Water Company
  • Spang & Company
  • Spang Chalfant and Company Inc.
  • Spang, Chalfant and Company
  • Spaug Chalfaut and Company
  • Spearman Iron Company
  • Spector Freight System
  • Spectrum
  • Speer Carbon Company
  • Speer Resistor Division
  • Spicer Manufacturing Company
  • Spirax Sarco USA
  • Spreckels Sugar Refining Company
  • Sprenger Brewing Company
  • Springdale Powerhouse
  • Springwell Foundry
  • St Joseph Lead Company
  • St. Anselm High School
  • St. Bernard Church
  • St. Clair County Gas and Electric Company
  • St. Corr Inst At Hungtindon
  • St. Francis Medical Center
  • St. Hubert’s Convent
  • St. James Episcopal Church
  • St. Joe Lead
  • St. Joe Resources Company
  • St. John’s General Hospital
  • St. Joseph Hospital
  • St. Joseph Lead Company
  • St. Joseph’s Academy
  • St. Louis Plate Glass Company
  • St. Luke’s Hospital
  • St. Luke’s University Health Network Sacred Heart Campus
  • St. Marks School
  • St. Mary’s Laundry
  • St. Nicholas Building
  • Stagmaier Brewing Company
  • Staley Starch
  • Staley Syrups
  • Stanbridge Apts
  • Standard Ice Manufacturing Company
  • Standard Life Building
  • Standard Oil
  • Standard Oil Company
  • Standard Oil Tank
  • Standard Plant
  • Standard Sanitary Manufacturing Company
  • Standard Scale and Supply Company
  • Standard Steel Car Company
  • Standard Steel Car Company
  • Standard Steel Works
  • Standard Steel Works Company
  • Standard Underground Cable Company
  • Stanley G. Flagg and Company
  • Stanton Colliery
  • Stanwix Steam Heating Plant
  • Star Fire Brick Company
  • Starr Stores Warehouse
  • State Hospital For Insane
  • State Teachers College
  • Station “B” Works
  • Station J
  • Stauffer Chemical Company
  • Steam Generator Sales Service
  • Steel Car Forge Company
  • Steel Car Forge Company
  • Steel Workers Local 7209
  • Steele Elementary School
  • Steelton and Highspire Railroad Company
  • Stegmaier Brewing Company
  • Stephen Girard Building
  • Sterling Silk Glove Company
  • Stern and Silverman
  • Sterrick Creek Coal Company
  • Stevenson Terrace Apartments
  • Stone & Webster Engineering
  • Stone Canon Cons. Coal Company
  • Stone Container Corporation
  • Stores Department
  • Stratton Motors
  • Straub Brewery
  • Strawbridge & Clothier
  • Strick Trailers
  • Struthers and Wells
  • Struthers Station
  • Struthers Well Corp
  • Suburban Rapid Transit Street Railway Company
  • Suburban Water Company
  • Sugar Apparatus Manufacturing Company
  • Sulzberger Junior High
  • Summerdale Dye & Finishing, Inc.
  • Summit Branch Mining Company
  • Summit Branch Railroad Company
  • Summit Branch Railroad Company
  • Summit Park Apartments
  • Sun Oil
  • Sun Oil Company
  • Sun Oil Company Refinery
  • Sun Oil Company Warehouse
  • Sun Oil Plant
  • Sun Petroleum Company
  • Sun Refining & Marketing Company
  • Sun Shipbuilding & Drydock Company
  • Sun Shipbuilding and Drydock Company
  • Sun Transport Company
  • Sunbeam Equipment Company
  • Sunbury and Northumberland Electric
  • Sunbury Converting Works
  • Sunoco LP
  • Sunoco Philadelphia
  • Sunoco Refining and Marketing
  • Sunoco, Inc. Point Breeze
  • Superintendent U.S. Mint
  • Superior Drawn Steel Company
  • Superior Steel Corporation
  • Superior Thread & Yarn Company
  • Superior Zinc Corp
  • Surpass Leather Company
  • Susquehanna Coal Company
  • Susquehanna Collieries Company
  • Susquehanna Power Station
  • Susquehanna Silk Mills
  • Swees Steel Company
  • Sweet’s Steel
  • Swift and Company
  • Swindell Dressler International Company
  • Swing and Bateman
  • Sylvania Elec Prod Inc
  • Sylvania Electric Products, Inc.
  • Syntex Dyeing & Finishing Company, Inc.
  • Synthane Corporation
  • T.C. Roberts and Company
  • Tacony Chemical Works
  • Tacony Ordnance Corporation
  • Talco Metals Company
  • Tarentum Light and Water Plant
  • Tarentum Light Plant
  • Tarentum Paper Mills
  • Tasty Baking Company
  • Tate Jones Company
  • Tate-Jones, Inc.
  • Taws and Hartman
  • Taylor Forge & Pipe Works
  • Taylor Wharton Iron and Steel Company
  • Tech Food Products Company
  • Temple Boiler
  • Temple Covenant of Peace
  • Temple Furnace
  • Temple Hospital
  • Temple Iron Company
  • Temple Iron Company
  • Temple Iron Company
  • Temple Iron Company
  • Temple University
  • Temple University Hospital
  • Tere Woodring and Company
  • Tetsner Dyeing Company
  • Texas Company
  • Textile Machine Works
  • Thaddeus Stevens College of Technology
  • Thalheimer Brothers, Inc.
  • The American Pulley Company
  • The Babcock & Wilcox Company Plant
  • The Budd Company
  • The Ellis School
  • The George Zerfass Home
  • The Kemmerer Group, Inc.
  • The Pittsburgh Dispatch
  • The Schuylkill Navy Athletic Club
  • Theater Workers Union – Local 8
  • Theodore E. Moser
  • Thermal Engineering International, Incorporated
  • Thermal Refractories Company
  • Thermal Transfer Corp
  • Thomas Dolan and Company
  • Thomas Dolan and Company
  • Thomas E. Lutner
  • Thomas Haywood
  • Thomas Jaggers
  • Thomas Jefferson University Hospital
  • Thomas May Pierce School
  • Thomas Textile
  • Thomas Wolstenholme Sons & Company
  • Thompson & Sons, Inc.
  • Thompson Brothers
  • Thos. A. Edison Edison and Illuminating Company
  • Three Mile Island
  • Three Mile Island Nuclear Plant
  • Thro’ Central Poor District of Luzerne Company
  • Tidewater Pipe Line Company
  • Tidewater Steel Company
  • Tilden Junior High
  • Tin Mill
  • Tioga Coal Company
  • Titus Generating Station
  • Titusville Iron Works
  • Toolmatic Company
  • Tosco Pennsylvania
  • Tosco Refining Company
  • Tower Hill Connellsville Coke Company
  • Townsend Company
  • Township Light and Power Company
  • Township of Annville
  • Trade & Convention Center
  • Trailmobile Manufacturing Company
  • Treadwell Construction Company
  • Tremont Laundry Company
  • Trent, Inc.
  • Trexler Farms Orchards
  • Tri State Non Ferrous Company
  • Trinity Middle School
  • Troy Jack
  • Tru Knit Industries
  • Truesdale Colliery
  • Truesdale Colly
  • TRW, Inc.
  • Tub Prod
  • Tubalas Products Div
  • Tube City Brewing Company
  • Turner and Serrel
  • Turtle Creek Valley Water Company
  • Tuscarora Oil Company, Ltd.
  • Tygart Glass
  • Tyler Charcoal Iron Tin Mills
  • Tyler School of Fine Art
  • Tyler Tube and Pipe Company
  • Tyrone Iron Company
  • Tyson Metal Products
  • U. S. Bureau of Mines
  • U. S. Bureau of Mines
  • U. S. Steel Corporation
  • U. S. Steel Corporation
  • U. S. Steel Corporation
  • U. S. Steel Corporation
  • U. S. Steel Corporation
  • U. S. Steel Corporation
  • U. S. Steel Corporation
  • U. S. Steel Corporation
  • U. S. Steel Corporation
  • U. S. Steel Corporation
  • U. S. Steel Corporation
  • U. S. Steel Urban Works
  • U.G.I. Company
  • U.S. Army Reserve Center
  • U.S. Army Reserve Center
  • U.S. Army Supply Base
  • U.S. Bureau of Mines, Main Building
  • U.S. Courthouse
  • U.S. Department of Agriculture
  • U.S. Electric Illuminating Company
  • U.S. Government Suppy Depot
  • U.S. Hoffman Machinery Corporation
  • U.S. Post Office
  • U.S. Post Office
  • U.S. Steel
  • U.S. Steel Chemical Plant
  • U.S. Steel Corporation
  • U.S. Steel Corporation
  • U.S. Steel Mill
  • Ugi Building
  • UGI Corporation
  • Ukranian Cathedral
  • Underground
  • Union Carbide & Carbon Chemical Corporation
  • Union Carbide Corporation
  • Union Coal Company
  • Union Coal Company
  • Union Coal Company Scott Colliery
  • Union Coal Company Scott Shaft
  • Union Dish Company
  • Union Drawn Steel Company
  • Union Electric Steel
  • Union Electric Steel Company
  • Union Ice Company
  • Union Iron Works
  • Union League Club
  • Union of Bricklayers and Allied Craftworkers
  • Union Paving Company
  • Union Paving Company
  • Union Spring & Manufacturing Corporation
  • Union Spring Manufacturing Company
  • Union Station
  • Union Steel Casting Company
  • Union Steel Company
  • Union Traction Company
  • Uniontown Hospital
  • Uniontown Senior High School
  • Uniroyal Rubber Company
  • Unit Rail Anchor Company, Inc.
  • United Church of Christ
  • United Container Corporation
  • United Electric Company of America
  • United Engineering & Foundry Company
  • United Engineering & Foundry Company
  • United Engineering & Foundry Company
  • United Engineering & Foundry Company
  • United Engineering and Foundry Company
  • United Gas Imp Company
  • United Gas Improvement Company
  • United Gas Improvement Company
  • United Gas Improvement Company
  • United Refining
  • United Refining Company
  • United Roofing and Manufacturing Company
  • United States Asbestos Company
  • United States Mint
  • United States Naval Hospital
  • United States Pipe and Foundry Company
  • United States Sanitary Manufacturing Company
  • United States Steel
  • United States Steel
  • United States Steel Corp
  • United States Steel Corp. (U.S. Steel)
  • United States Steel Corporation
  • United States Steel Corporation
  • United States Steel Corporation
  • United States Steel Corporation
  • United States Steel Corporation
  • United States Steel Corporation
  • United States Steel Corporation
  • United Steel and Wire
  • United Steel Barrell
  • United Traction Company
  • Universal Atlas Cement
  • Universal Cyclops
  • Universal Cyclops Steel Mill
  • Universal Dye Works
  • Universal Elec. & Manufacturing. Company
  • Universal Oil Products
  • Universal Rubber Products Company
  • Universal Warehouse
  • Universal-Cyclops Steel Corporation
  • Universal-Rundle Corporation
  • University City High School
  • University Club
  • University of Pennsylvania
  • University of Pennsylvania
  • University of Pennsylvania Hospital
  • University of Pennsylvania Hyperbarric Test Complex
  • University of Pittsburgh (Pitt) Buildings and Facilities
  • University of Pittsburgh Medical (UPMC) Braddock Hospital
  • University Square Condominiums
  • UPMC Children’s Hospital of Pittsburgh
  • UPMC Magee-Womens Hospital
  • UPMC Mercy Hospital
  • UPMC Passavant Care Center
  • UPMC Shadyside Aiken Medical Building
  • UPMC St. Margaret Hospital
  • UPMC Western Psychiatric Hospital
  • Us Aluminum Company
  • Us Army War College – Carlisle Barracks
  • Us Asbestos
  • Us Sanitary Manufacturing.
  • Us Veterans Administration
  • USX Corporation
  • Usx Steel Mill
  • Usx Steel Mill
  • Usx Steel Mill
  • V.L. Cavannas Company
  • Valley Electric Company
  • Valley Forge Hospital
  • Valley Ice Company
  • Valley Mill
  • Valley Mould and Iron Company
  • Valley Traction Company
  • Van Dorn Company Heat Tre
  • Van Horn Ely
  • Vanadium Alloy Steel Company
  • Vanadium Alloy Steel Company
  • Vandegrift Construction Company
  • Vandergrift Electric Light and Power Company
  • Vandergrift Land and Improvement Company
  • Vare Junior High School
  • Vasco
  • Vaugh Sanitary Bakery
  • Vciticorp Venture Capital
  • Vernon Textile Company
  • Vertal Division
  • Vertol Div Boeing Company
  • Vesta Coal Company
  • Vesta Coal Company
  • Vesuvius Crucible Company
  • Veterans Administration Hospital
  • Veterans Hospital
  • Veterans Hospital
  • Veterans Stadium
  • Vick Manufacturing Division
  • Victor Balata Plant
  • Victor Barward Industries
  • Victor Box Company
  • Victor Chemical Works
  • Village Terrace Housing
  • Visco Company
  • Viscose Company
  • Viscose Company
  • Vitro
  • Vtasty Baking Company Inc
  • Vulcan Detinning Company
  • Vulcan Foundry and Machine Company
  • Vulcan Mold
  • Vulcanite Paving Company
  • Vulvanized Rubber & Plastics Company
  • W Dewees Wood Department
  • W G Payne and Company
  • W M H Rorer Company
  • W. Dewees Wood Company
  • W. J. Lawlor
  • W.C. Hamilton and Sons
  • W.F. Mosser & Sons
  • W.G. Balph Company
  • W.G. Pennypacker
  • W.G. Wilkins Company
  • W.H. Piper and Company
  • W.J. Rainey Company
  • W.M. Anderson
  • W.M. Mann Company
  • W.P.O. Railroad
  • W.S. Darley & Co.
  • Wabash Pittsburgh Terminal Railway
  • Wager and Cox
  • Walker and Keplar
  • Wall & Shand Department Store
  • Wanamaker Garage
  • Wanamie Colliery
  • War College
  • Warden Frew and Company
  • Wark Army Supply
  • Warner Company
  • Warner Company
  • Warren Light and Power Company
  • Warren Power Plant
  • Warwick Iron and Steel Company
  • Washburn, Williams and Company
  • Washington Candc Company
  • Washington Hospital
  • Washington Ice Company
  • Washington Jefferson College
  • Washington Powerhouse
  • Washington Tin Plate Company
  • Washington Tool & Machine Company
  • Washingtonville Power Plant
  • Water Works Northeast
  • Water Works Southeast
  • Water Works Southwest
  • Waterworks Construction
  • Wayne Constn Company
  • Wayne Crouse, Inc.
  • Wayne Iron Works
  • Weathercraft Insulation Company
  • Webster Coal and Coke Company
  • Webster Coal and Coke Company
  • Webster Furnace
  • Weeks Brothers
  • Weightman Building
  • Weightman Estate
  • Weinberg Louis and Marion
  • Weirton Steel
  • Welding Engineers
  • Wellman-Seaver-Morgan Company
  • WellSpan York Hospital
  • Wertz Engineering Company
  • Wessell Hardware Corporation
  • West Chester Laundry
  • West Chester University
  • West End Coal Company
  • West End Heating and Energy Company
  • West End Rolling Mill Company
  • West Park Hospital
  • West Penn Hospital
  • West Penn Power Company
  • West Penn Power Company
  • West Penn Power Company
  • West Penn Power Company
  • West Pennsylvania Power Company
  • West Pennsylvania Power Company
  • West Pennsylvania Power Company
  • West Pennsylvania Power Company
  • West Pennsylvania Power Company
  • West Pennsylvania Traction Company
  • West Pennsylvania Traction Company
  • West Philadelphia City High School
  • West Philadelphia Works
  • West Side Osteopathic Hospital
  • West Virginia Pulp & Paper Company
  • West Virginia Pulp and Paper Company
  • Westerly Parkway School
  • Western Electric Company
  • Western Electric Company, Inc.
  • Western Electric Company, Inc.
  • Western Electric Corporation
  • Western Metal Bed Company
  • Western State Penitentiary
  • Westinghouse
  • Westinghouse Aed Building Addn
  • Westinghouse Air Brake Company
  • Westinghouse Air Brake Company
  • Westinghouse Air Brake Company
  • Westinghouse Betis
  • Westinghouse Cars and Company
  • Westinghouse Electric & Manufacturing Company
  • Westinghouse Electric & Manufacturing Company
  • Westinghouse Electric and Manufacturing Company
  • Westinghouse Electric and Manufacturing Company
  • Westinghouse Electric Company
  • Westinghouse Electric Company
  • Westinghouse Electric Company
  • Westinghouse Electric Company
  • Westinghouse Electric Company
  • Westinghouse Electric Company
  • Westinghouse Electric Company
  • Westinghouse Electric Corp
  • Westinghouse Electric Corp
  • Westinghouse Electric Corporation
  • Westinghouse Electric Corporation
  • Westinghouse Electric Corporation
  • Westinghouse Electric Corporation
  • Westinghouse Electric Corporation
  • Westinghouse Electric Corporation
  • Westinghouse Electric Corporation
  • Westinghouse Machine Company
  • Westinghouse Machine Company
  • Westinghouse Power Division
  • Westinghouse Steam Division
  • Westmoreland Coal Company
  • Westmoreland Coal Company
  • Westmoreland County Home For The Destitute
  • Westvaco
  • Westvaco Corporation
  • Westvaco Pulp and Paper
  • Weyeth Laboratories, Inc.
  • Wheelabrator Falls Wte
  • Wheeling-Pittsburgh Steel Corporation
  • Wheeling-Pittsburgh Steel Corporation
  • White Pigment Corp
  • Whitehall Cement Company
  • Whitemarsh Township
  • Whiting Corporation
  • Whitman Chocolate
  • Widener Building
  • Widener University
  • Wiegner Smelting Company
  • Wilbur Chocolate Company
  • Wildman & Schwartz
  • Wildman Jacquard Company
  • Wilkes Barre Anthracite Coal Company
  • Wilkes Barre College
  • Wilkes Barre Company
  • Wilkes Barre Electric Light Company
  • Wilkes Barre Gas and Electric Company
  • Wilkes Barre Steam Heat Company
  • Wilkes College
  • Wilkesbarre Railway Company
  • Wilkinsburg and East Pittsburgh Street Railway Company
  • Wilkinsburg Electric Company
  • Wilkinsburg High School
  • Wilkinson and E. Pittsburgh St. Railway Company
  • Willamette Industries
  • William Armstrong & Sons
  • William Armstrong & Sons
  • William Armstrong & Sons
  • William Cramp & Sons Shipbuilding
  • William Cramp and Sons
  • William F. Forepaugh Jr. & Bros
  • William Galloway
  • William J. Cramp Elementary
  • William J. Mimm Lancaster Floor Plant
  • William L. Sayre Junior High School
  • William Mann Company
  • William Miller’s Sons, Inc.
  • William Penn High School
  • William Penn Hotel
  • William S. Moorhead Federal Building
  • William Steele & Sons Company
  • William Weightman
  • William Whitaker & Sons
  • Williamsburg Generating Station
  • Williamson Brothers Company
  • Williamsport Powerhouse
  • Williamsport Technical Institute
  • Willow Grove Naval Air Station
  • Willowbrook North 3
  • Willson Safety Products
  • Wilputte Coke Oven
  • Wilson & Company
  • Wilson and Company, Inc.
  • Wilson Fitzgibbons Oil Company
  • Wilson H. Brown Inc.
  • Wilson Martin Company
  • Wilson-Snyder Centrifugal Pump Company
  • Windber Electric Company
  • Wire Mill
  • Wirtz A H Inc
  • Wise
  • Wise Delicatessen Company
  • Wise Foods Inc
  • Wise Potatoe Chip Company
  • Wishart Theatre
  • Witco Chemical Corp
  • Witco Chemical Corporation
  • Witco Corporation
  • Witherspoon Building
  • Wm Krause and Sons Cement Company
  • Wm Leard Company
  • Wm Wharton Jr. Company
  • Wm. H. Grundy and Company
  • Wm. H. Taylor & Company
  • Wolf Building Company
  • Women’s Christian Association
  • Women’s Medical College
  • Women’s Medical College Hospital
  • Wood John Company
  • Wood, Alan, Steel Company
  • Woodbourne Apartment Association
  • Woodings Verona Steel Works
  • Woodland Fire Brick Company
  • Woodland Fire Bridge Company
  • Woodland Fire Buick Company
  • Woolworth Building
  • Worth Brothers Company
  • Wright Brothers and Company
  • Wright Elementary School
  • Wycoff Steel
  • Wyeth Labs
  • Wyoming Ave and G Street
  • Wyoming Engineering Company
  • Wyoming Valley Electric Light. Heat and Power Company
  • Yewdall and Jones Brothers
  • YMCA
  • Ymca
  • Ymca
  • Yoder Industries
  • York City Steam Plant
  • York College of Pennsylvania Buildings and Facilities
  • York Corrugating Company
  • York International Corporation
  • York Junior College
  • York Manufacturing Company
  • York Shipley, Inc.
  • York Water Company
  • Yorktowne Hotel
  • Young Door Company
  • Young Men’s Christian Association
  • Youngstown Sheet & Tube Company
  • Zabel Bros. Company, Inc.
  • Zack Industries
  • Zenith Corporation
  • Zimmerli Gym Lock Haven University
  • Zinc Smelting Div
  • Zinman Furs
  • Zion Industries
  • Zug Island Steel Plant
  • Zurn Industries, LLC

Find Mesothelioma Doctors, Lawyers and Asbestos Exposure Sites Near You

Find Mesothelioma Doctors, Lawyers and Asbestos Exposure Sites Near You
Sources [+]