Coal Co.; Mercer Gas Coal Co.; Miners Block Coal Co.;
Miners Co-Operative Coal Co.; Monessen Coal & Coke
Co.; Montour & Lake Erie Coal Co.; Naomi Coal Co.;
National Mining Co.; North Penn Coal Co.; Ohio River
Coal Co.; Peoples Coal Co.; Pen-American Gas Coal Co.;
Penn-Franklin Coal Co.; Penn-Pitt Coal & Coke Co.;
Penn Smokeless Coal Co.; Penn York Coal & Coke Co.;
Peters Creek Coal Co.; Pioneer Coal & Coke Co.; Pitt
Gas Coal Co.; Pittsburgh Block Coal Co.; Pittsburgh-Cambridge
Coal Co.; Pittsburgh-Connellsville Coal &
Coke Co.; Pittsburgh, Great Lakes & Northwestern Coal
Corporation; Pittsburgh Hanover Coal Co.; Pittsburgh
Pocahontas High Grade Coal Co.; Pittsburgh Seam Coal
Co.; Pittsburgh & Baltimore Coal Co.; Pittsburgh &
Bessemer Coal Co.; Pittsburgh & Erie Coal Co.; Pluto
Coal Co.; Producers Coal Corporation; Producers Fuel
Co.; Poland Coal Co.; Quality Coal & Coke Co.; W. J.
Rainey, Coal & Coke; Raridan & East Brady Coal Co.;
Redbank Coal Co.; Reilly-Peabody Fuel Co.; Reliance
Coal & Coke Co.; Richards Coal Mining Co.; Richland
Coal Co.; Robbins Coal Co.; Sagamore Coal Co.; Saw
Mill Run Coal Co.; Second Pool Coal Co.; Short Creek
Coal Co.; W. B. Skelly Coal Co.; South Fayette Coal
Co.; Spring Valley Coal Co.; Springer Coal Co.; Squirrel
Hill Coal Co.; Standard Coal Sales Co.; Star Fuel Coal
Co.; Superba Coal & Coke Co.; Tasa Coal Co.; Taylor
Run Coal Co.; Tri-State Coal & Coke Co.; Two Rivers
Cannel Coal Co.; Union Coal & Coke Co.; Union Collieries
Co.; Union Fuel Co.; United Fuel & Iron Co.;
United States Coal & Coke Co.; Valley Camp Coal Co.;
Vesta Coal Co.; Victoria Coal Co.; Victory Coal Co..
Vulcan Coal Co.; Walter-Wallingford Coal Co.; W. H;
Warner & Co.; Warner Youghiogheny Coal Co.; Washington
Gas Coal Co.; Waverly Coal & Coke Co.; Wayne
Coal Co.; Weaver Coal Co., Inc.; West Penn By-Product
Coal Co.; West Penn Fuel Co.; Westmoreland-Connellsville
Coal & Coke Co.; Westmoreland Fuel Co.; Wilson-Beegle
Coal Co.; Winfield Coal Co.; Woodruff Coal &
Iron Co.; Youghahela Coal Co.; Youghiogheny Coal &
Coke Co.; Youghiogheny Pittsburgh Coal Co.; Yough-Leherv
& Ohio Coal Co.; Zenith Coal Co.
