Pittsburgh and Connellsville - Pittsburgh, Cincinnati

Pittsburgh and Connellsville Gas, Coal and Coke Co. (Connellsville, Pa.), 1888

Pittsburgh and Lake Erie Railroad Company (Pittsburgh, Pa.), 1886-1903

Pittsburgh Association for the Improvement of the Poor (Pittsburgh, Pa.), 1893-1911

Pittsburgh Athletic Association (Pittsburgh, Pa.), 1908, 1910

Pittsburgh, Bessemer and Lake Erie Railroad Company (Pittsburgh, Pa.), 1900-1901

Pittsburgh-Buffalo Company (Pittsburgh, Pa.), 1913

Pittsburgh Bulletin (Pittsburgh, Pa.), 1906-1917

Pittsburgh Catholic Lyceum [Pittsburgh, Pa.], 1909

Pittsburgh Chronicle and Telegraph [Pittsburgh, Pa.], 1919

Pittsburgh, Cincinnati, Chicago and St. Louis Railroad Co. (Pittsburgh, Pa.), 1897-1920