Tacoma Municipal Belt Line Railway Alco S-4 diesel locomotive number 921 (built in 1953) parked in Tacoma, Washington, in February 1975. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switching locomotive.

Tacoma Municipal Belt Line Railway Alco S-4 diesel locomotive number 930 (construction number 78414, built in 1953) hauls a long cut of cars in Tacoma, Washington, in June 1975. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switching locomotive, freight train.

Tacoma Municipal Belt Line Railway Alco S-4 diesel locomotive number 944 (construction number 80608, built in 1953) parked at the engine facility in Tacoma, Washington, in 1980. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switching locomotive.

City of Tacoma watershed facility at Headworks Spur, Washington, in the upper Green River valley, in December 1953. Northern Pacific passenger train number 26, the North Coast Limited, passes at left, Tacoma water pipe inlet at lower right. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, diesel locomotive

Three Milwaukee Road diesel locomotives near Boylston, Washington, circa 1971. A MILW General Electric and two Electro Motive Division locomotives leading a westbound train out of the tunnel at Boylston, Washington. The photograph is undated, but was developed in June ,1971.

Three Milwaukee Road diesel locomotives near Boylston, Washington, circa 1971. A Milwaukee Road (MILW) General Electric and two Electro Motive Division locomotives leading a westbound train out of the tunnel at Boylston, Washington. The photograph is undated, but was developed in June, 1971.

Tidewater Southern Railway diesel locomotive 745 an American Locomotive Companies model S2 switcher, circa 1976. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Tidewater Southern Railway Alco S-2 diesel locomotive number 745 parked at Sacramento, California, on August 3, 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switching locomotive.

Tidewater Southern Railway Alco RS-3 diesel locomotive number 746 parked at Modesto, California, on June 22, 1974. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switching locomotive.

Tidewater Southern Railway Alco RS-3 diesel locomotive number 746 parked at Modesto, California, on June 22, 1974. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switching locomotive