The Museum Library and Archives preserve the written and visual legacy of railroading in the Commonwealth of Pennsylvania.

The collection is diverse--historical, political, cultural, social, economic, and technological--and emphasizes its development from the 1830s through the present day.

Included also are materials of a general nature relative to the administrative and operational history of the railroad industry, nationally and internationally.

Library reference sources include a wide range of books, periodicals, railroad association and union publications, government documents and trade catalogues.

The Archives preserves extensive photograph, drawing, map, manuscript and ephemera collections.