Edward R. Stickel (1928-2008) worked for the Penn Central Transportation Company, Amtrak, and Southeastern Pennsylvania Transportation Authority (SEPTA). His collection consists of copies of official documents relating to the commuter rail operations of SEPTA and its predecessors.

John Foster Tucker III (1950-2008) was a Philadelphia-born rail transit operating official and rail history enthusiast. This collection consists of photographs of trolleys, trains, rails lines, and rail stations in Philadelphia and the city's Pennsylvania suburbs, as well as offices, maintenance shops, and garages used by transit authorities. Most of the collection is devoted to SEPTA, but predecessor companies PTC (Philadelphia Transportation Company) and PSTC (Philadelphia Suburban Transportation Company) are also represented.

The John F. Tucker Transit History Collection consists of official documents produced or used by Mr. Tucker during his career as a public transit official, records of the pre-SEPTA Philadelphia Rapid Transit Company (1907-1939) and the Philadelphia Transportation Company (1940-1968) that he preserved from loss or destruction, and materials collected out of his interest in the history of transit systems, particularly electric traction lines. The collection traces the evolution of the Philadelphia transit system, its extent, routes and services, and of North American rail rapid transit generally.

Jonathan H. Klein (1949-) spent his professional career as a specialist in passenger railroad and rail transit equipment economics. The papers consist of a small sample of reports and memoranda written or collected by Klein in his role as a manager in charge of rail passenger equipment procurement, performance and maintenance. The agencies represented are SEPTA, Chicago Transit Authority, BART, LAMTA and Amtrak.

The collection consists of official documents produced or used by Ronald DeGraw during his career as a public transit official and transit consultant, materials from pre-SEPTA operators of the Philadelphia transit system that he preserved from loss or destruction, research materials that he amassed for writing his published and projected books, and photographs and ephemera collected out of his interest in the history of transit systems, particularly electric traction lines or what came to be called light rail transit.