This collection contains a wide variety of technical manuals, operation logs, and repair guides. These were designed to assist engineers in diagnosing and correcting problems on the Southern Railway locomotives of the 1940s and 1950s. Other articles include newspaper clippings and magazines on the history of Southern Railway, personnel rosters, train schedules, and some of Stein's personal papers.

The Long family papers include materials from James Long's work in the locomotive industry, including periodicals from the International Association of Machinists as well as instruction guides for the maintenance of locomotives. The collection also contains a scrapbook of Marie DeLay's time as a Girls High School student.