SP&S 4-6-2 steam locomotive Number 624, Class H-1, with a passenger train in Union Station; oiling around on Train Number 4, August 24, 1947.

SP&S 4-6-2 steam locomotive Number 621, Class H-1, arriving with passenger train Number One at Portland, May 7, 1939. Photo by Emery J. Roberts.

SP&S 4-4-2 steam locomotive Number 603, Class C-1, with a passenger train in Union Station, 1939. Photo by Herbert L. Arey.

SP&S 2-8-0 steam locomotive Number 364, Class N-3, with the yard transfer to Lake Yard in Portland undated.

SP&S 4-6-0 steam locomotive Number 157, Class D-3, departing with a passenger train from Portland, January 2, 1922, from the J.F. Adams Collection.

SP&S railroad yard at Hoyt Street in Portland; view of various steam locomotives, undated.

SP&S passenger Train with 4-4-2 steam locomotive Number 605, Class C-1, with the Astoria Local departing Union Station, August 24, 1947.

SP&S Hoyt Street Roundhouse being constructed; SP&S passenger and freight cars, cabooses in Portland, Oregon, undated.

SP&S observation car; group photo, Northern Pacific logo on car, undated.

SP&S observation car, Inland Empire Express, undated, from the Oregon Historical Society Collection.