Published irregularly from 1914 to 1967 by the Lewis Publishing Company. Biographies profile thousands of prominent Pennsylvanians who contributed to the development of the Commonwealth in many fields of endeavor. The online version offered by Penn State contains ONLY the volumes of the Encyclopedia known to be in the public domain (the first 14 volumes published before 1923).
Harper, Frank C. Pittsburgh of Today, its Resources and People.
4 vols. New York: The American Historical Society, Inc., 1931.
HUNT STACKS-2 F159 .P6 H27
HUNT REF-1 F159 .P6 H27
Biographies are in volumes 3-4.
Reed, George Irving, ed. Century Cyclopedia of History and Biography: Pennsylvania.