The James Fredrickson Collection Northern Pacific Railroads - Maintenance and Repair subseries is a compilation of photographs of Northern Pacific Railroad section houses and other structures related to track and right of way maintenance.
Railroad signal and sign photographs from the George Werkema Collection of Northern Pacific Railroad Company subjects in locations across the western United States.
Railroad signal and sign photographs from the George Werkema Collection of Burlington Northern Railroad Company subjects in locations across the western United States.
The Signals portion of Northern Pacific Railroad photographs of the Walter W. Ainsworth Collection includes photographs of railroad signals and signs in the Pacific Northwest.
Northern Pacific signal equipment, Union Station, Tacoma, Washington, December 11, 1967. Outside of station with workers hoisting crate with Centralized Traffic Control equipment to platform roof. Photo by J.M. Fredrickson . Other Subject Classes: signal equipment, station, railroad employee