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 3001 - Steam Locomotives
- 501 more...
- ItemWWASPSS-07-103 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 620, Vancouver, Washington, March 22, 1942
- ItemWWASPSS-07-104 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 620, Vancouver, Washington, March 22, 1942
- ItemWWASPSS-07-105 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 620, Vancouver, Washington, March 22, 1942
- ItemWWASPSS-07-106 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 620, Vancouver, Washington, March 22, 1942
- ItemWWASPSS-07-107 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 621, undated
- ItemWWASPSS-07-108 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 620, Vancouver, Washington, March 22, 1942
- ItemWWASPSS-07-109 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 621, Portland, Oregon, December 2, 1927
- ItemWWASPSS-07-110 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 621, Portland, Oregon, August 13, 1939
- ItemWWASPSS-07-111 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 621, Portland, Oregon, undated
- 440 more...