Spokane, Portland & Seattle Railway steam locomotive 158 at Portland, Oregon, circa 1928. Spokane Portland & Seattle 158, formerly Northern Pacific number 257, class P, 4-6-0, built by Schenectady, 1898. Photo by H.H. Arey, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster shot

Spokane, Portland & Seattle Railway steam locomotive number 157 at Portland, Oregon, circa 1928. Spokane Portland & Seattle 157, formerly Northern Pacific number 251, class P, 4-6-0, built by Schenectady, 1898. Photo by H.H. Arey, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster shot

Southern Pacific Railroad steam locomotive number 1901 at Portland, Oregon, circa 1910. SP 1901, a 2-6-2T in switching service at Portland circa 1910. Photo by K. Leavens, J.M. Fredricson collection. Other Subject Classes: steam locomotive, switcher locomotive.

Southern Pacific Railroad diesel locomotive number 7943 at Portland, Oregon in 1990. SP 7966 and 7943 with slug 1601 lead a freight consist in Portland in 1990. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train, slug locomotive.

Southern Pacific Railroad diesel locomotive number 2608 at Portland, Oregon in 1990. SP 2608, an EMD SW1500 switcher, parked at Portland in 1990. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive.

Southern Pacific sleeping car 9027 and the rest of the cars from the northbound Southern Pacific passenger train "Cascade" are being taken to the Northern Pacific Terminal yard at Guilds Lake for cleaning and servicing in 1965. Photograph by Alden Raney. Other subject classes: Car-Sleeper.

Southern Pacific sleeping car 9027 and the rest of the cars from the northbound Southern Pacific passenger train "Cascade" are being taken to the Northern Pacific Terminal yard at Guilds Lake for cleaning and servicing in 1965. Photograph by Alden Raney. Other subject classes: Car-Sleeper.

Southern Pacific rail detector car X-4901 at the business car track at Portland Union Station in 1962. Photograph by Alden Raney. Other subject classes: Car-Rail Detector.

Southern Pacific American Locomotive Company type PA 6007 along with another type PA after cutting off the inbound Southern Pacific passenger train "Cascade" at Portland Union Station in 1959. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel, Depot-Passenger.

Southern Pacific 3822 on a transfer freight from Southern Pacific Railroad's Brooklyn Yard, train is about to enter Union Pacific Railroad's Albina Yard. in 1978. Photograph by Alden Raney. Other subject classes: Locomotive-Diesel, Train-Freight.