Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series007 - Spokane, Portland, and Seattle Railway
- Subseries Level 1014 - Photographs
- Subseries Level 2003 - Railroads--Buildings and Structures
- Subseries Level 3002 - Depots and Freighthouses
- 38 more...
- ItemWWASPSL6-040 - Spokane, Portland, and Seattle (SP&S) Depot at Goldendale, Washington, June 1960
- ItemWWASPSL6-072 - Spokane, Portland, and Seattle (SP&S) Depot at Plymouth, Washington, March 1969
- ItemWWASPSL6-074 - Spokane, Portland, and Seattle (SP&S) Depot at Kennewick, Washington, undated
- ItemWWASPSL7-028 - Spokane, Portland, and Seattle (SP&S) Station Sign at Levey, Washington, undated
- ItemWWASPSL8-007 - Spokane, Portland, and Seattle (SP&S) Depot at Scappoose, Oregon, undated
- ItemWWASPSL8-008 - Spokane, Portland, and Seattle (SP&S) Depot at Scappoose, Oregon, undated
- ItemWWASPSL8-009 - Spokane, Portland, and Seattle (SP&S) Depot at Scappoose, Oregon, undated
- ItemWWASPSL8-010 - Spokane, Portland, and Seattle (SP&S) Depot at Scappoose, Oregon, undated
- ItemWWASPSL8-011 - Spokane, Portland, and Seattle (SP&S) Depot at Warren, Oregon, undated
- 33 more...