5 boxes, 2 oversize boxes, and 1 oversize folder. Includes many letters from employees sent with various items in answer to requests for old material for museum collection, displays, archives, etc., 1926-48. Items donated are random and mostly ephemeral in nature, such as diaries and account books kept by conductors, newspaper and magazine clippings, copies of early railroad magazines, sample forms, tickets, and baggage claim tags.

All photographs have been moved to the IC Addenda - Photograph Series; tariffs have been moved to IC 3.7 and +3.7 (Tariffs); timetables have been moved to IC 3.8 and +3.8 (Timetables); and maps have been moved to IC Addenda - Maps series.