The Stan Kistler Collection consists of over 500 images of Northern Pacific Railroad Company equipment during the middle decades of the 20th century and 12 Northern Pacific public timetables from the 1930's through 1957, collected by Harold Stewart.

The James Fredrickson Collection of Union Pacific Railroad railroad equipment and supplies photograph subseries is a compilation of photographs concerned with the Union Pacific Railroad Company equipment and related supplies.

The Railroad Equipment and Supplies section of the Cordell Newby Collection includes color slides of Great Northern Railway equipment, covering locomotives, freight cars, maintenance of way equipment and passenger cars.

The James Fredrickson Collection of Southern Pacific Railroad railroad equipment and supplies photograph subseries consists of 3 photographs of Southern Pacific Railroad Company diesel locomotives.

Railroad equipment photographs from the George Werkema Collection of various railroad company subjects in locations across the western United States.

Railroad equipment photographs from the George Werkema Collection of Northern Pacific Railroad Company subjects in locations across the western United States.

Railroad equipment photographs from the George Werkema Collection of Burlington Northern Railroad Company subjects in locations across the western United States.

Great Northern Railway equipment photographs taken between 1967 and 1973 in the Pacific Northwest.

The James Fredrickson Collection Northern Pacific Railroad railroad equipment and supplies photograph subseries is an extensive compilation of photographs concerned with the Northern Pacific Railroad Company equipment and related supplies.

The Equipment and Supplies portion of Northern Pacific Railroad photographs of the Walter W. Ainsworth Collection includes photographs of railroad equipment in the Pacific Northwest.