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 3008 - Buses
- 6 more...
- ItemWWASPSB1-008 - Spokane, Portland and Seattle Transportation Company (SP&ST) Stage, 1926
- ItemWWASPSB1-009 - Spokane, Portland and Seattle Transportation Company (SP&ST) Stage Number 9, undated
- ItemWWASPSB1-010 - Spokane, Portland and Seattle Transportation Company (SP&ST) Stage Number 9, 1926
- ItemWWASPSB1-011 - Spokane, Portland and Seattle Transportation Company (SP&ST) Stage Number 9, 1926
- ItemWWASPSB1-012 - Spokane, Portland and Seattle Transportation Company (SP&ST) Stage Number 1, undated
- ItemWWASPSB1-013 - Spokane, Portland and Seattle Transportation Company (SP&ST) Stage Number 63, 1927
- ItemWWASPSB1-014 - Spokane, Portland and Seattle Transportation Company (SP&ST) Stage Number 65, Seaside, Oregon, 1930
- ItemWWASPSB1-015 - Spokane, Portland and Seattle Transportation Company (SP&ST) Stage Number 87, John Day River, Oregon, 1935
- ItemWWASPSB1-016 - Spokane, Portland and Seattle Transportation Company (SP&ST) Stage Number 90, Oregon, 1935
- 20 more...