Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series007 - Spokane, Portland, and Seattle Railway
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3004 - Railroad Passenger Cars
- 13 more...
- ItemWWASPSL7-126 - Spokane, Portland, and Seattle (SP&S) Passenger cars, Washington State, undated
- ItemWWASPSL7-147 - Southern Pacific 4449 Excursion Train, Washington State, undated
- ItemWWASPSL8-030 - Spokane, Portland, and Seattle (SP&S) Passenger Cars at Rainier, Oregon, undated
- ItemWWASPSL8-032 - Spokane, Portland, and Seattle (SP&S) Passenger Cars at Rainier, Oregon, undated
- ItemWWASPSL8-046 - Spokane, Portland, and Seattle (SP&S) Observation Car at Pyramid, Oregon, August 5, 1916
- ItemWWASPSL8-060 - Spokane, Portland, and Seattle (SP&S) Observation Car at Clatskanie, Oregon, undated
- ItemWWASPSL1-051 - Spokane, Portland, and Seattle (SP&S) Passenger Cars, Freight Cars and Cabooses, Portland, Oregon, undated
- ItemWWASPSL6-061 - Spokane, Portland, and Seattle (SP&S) Passenger Cars near Cliffs, Washington, September 28, 1947
- ItemWWASPSL8-040 - Spokane, Portland, and Seattle (SP&S) Passenger Car 88 at Avon, Oregon, circa 1922
- 65 more...