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 3001 - Bridges
- 65 more...
- ItemWWASPSL3-056 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, January 15, 1914
- ItemWWASPSL3-057 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, August 28, 1909
- ItemWWASPSL3-058 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, undated
- ItemWWASPSL3-059 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, November 19, 1917
- ItemWWASPSL3-060 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, September 2, 1927
- ItemWWASPSL3-061 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, November 1, 1912
- ItemWWASPSL3-062 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, undated
- ItemWWASPSL3-063 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, undated
- ItemWWASPSL3-064 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, undated
- 34 more...