The PRR photograph collection primarily depicts the company itself. Still, numerous views of similar facilities and equipment on other railroads, nearby buildings, properties, or standardized equipment and accessories collected for reference are included. Almost all the photographs are from commercial photographers hired on short-term contracts, but some are prints from the company's negatives. The Pennsylvania Railroad negatives collection contains more than 5200 negatives from the official Pennsylvania Railroad files.
In the Pennsylvania Railroad women workers' oral histories collection, five former employees describe how they acquired their positions and their experiences working for the company.
The Reading Company photograph collection consists of photographs [negatives, blueprints, and other graphic materials relating to the Reading Company and its predecessor, the Philadelphia & Reading Railroad Company. Frank A. Weer (1932-2019) was an employee of the Reading Company and an enthusiastic photographer of all things related to railroads, specifically in Pennsylvania. The Weer collection includes negatives (glass plate and film), photographic prints, and color slide transparencies.
The Red Arrow Lines collection contains photographs of transit vehicles and stations used in the book R. DeGraw, Red Arrow Lines.
David Harrison Cope (1913-2001) was interested in railroads and steam locomotives and began collecting photographs early in life. The Cope collection primarily consists of black and white photographs and negatives of steam locomotives from various railroads. Still, it includes other rolling stock, station photos, and related railroad items such as coaling stations and street railroads, interurbans, and trolley images.
Harry P. Albrecht was employed by the Pennsylvania Railroad from 1922 to 1968 as a claims investigator for lost and damaged freight. Albrecht was an avid rail fan and amassed an extensive collection of photographs and ephemera related to trains, trolleys (especially those in the Philadelphia area), and other equipment owned by railroad companies.
The Chamber of Commerce's magazine Nation's Business contains railroad publicity photos among various industrial subjects.
The American Iron and Steel Institute collection consists of photographs, research notes, audio, film, and video documenting the history of the steel industry.
The Dallin Aerial Photo Collection, from the 1920s, 30s, and 40s, primarily within 100 miles of Philadelphia, shows railroads in the landscape with occasional close-ups in urban areas.
The Herbert Harwood Jr. Railroad and Transportation collection of photographic negatives comprises nearly 150,000 images covering the twentieth century. The collection includes Harwood's work as a railroad photographer as well as the work of others.
The Pennsylvania Railroad women workers' oral histories collection consists of two 1998 interviews in West Chester, Pennsylvania, with five women who worked for the Pennsylvania Railroad. They describe how they acquired their positions and their experiences working for the company. Topics discussed include wages, uniforms, sexism in the workplace, and the working environment during World War II.