Washington Terminal Company Alco RS1 diesel locomotive number 43 (construction number 72815, built in 1944) parked at the Union Station engine facility in Washington, District of Columbia, on January 23, 1977. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Washington Terminal Company Alco RS1 diesel locomotive number 46 (construction number 74314, built in 1945) at Washington, District of Columbia, on July 5, 1982. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive .

Western Maryland Railway diesel locomotive 7548 leads a freight train at Washington, District of Columbia on July 1, 1982. Western Maryland Railway was later merged into the B&O system and became part of CSX Transportation. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train

Western Pacific Railroad diesel locomotive 3007 at Auburn, Washington in March 1978. This engine was wrecked in a head on collision in South Seattle. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, accident.

Western Pacific Railroad diesel locomotive 3007 at Auburn, Washington in March 1978. This engine was wrecked in a head on collision in South Seattle. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, accident.

Western Pacific type GP40 3502 at Hoyt Street Yard in Portland in 1981. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

Western Pacific (WP) diesel locomotive 3537 at McCarver Street, Washington in September 1971. WP 3537 leads Burlington Northern train number 137, Vancouver, BC to Los Angeles time freight, past the Sperry Dock just north of McCarver Street in Tacoma. The train operated via Vancouver, Washington, Wishram and Bieber, California. WP took the train south from Bieber. Photo by J.M. Fredrickson. Other Subject Classes: freight train, diesel locomotive, dock.

Western Pacific type GP40's 3555 and 3502 at Hoyt Street Yard in Portland in 1981. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel.

Western Pacific (WP) diesel locomotive 766 at Tacoma, Washington, on April 24, 1971. Burlington Northern train number 137, Vancouver, BC to Los Angeles time freight passes the Tacoma Depot with WP power on the point. The train operated via Vancouver, Washington, Wishram and Bieber, California. WP took the train south from Bieber. Photo by J.M. Fredrickson. Other Subject Classes: freight train, diesel locomotive, passenger depot.