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
- 944 more...
- ItemWWASPSS-06-106 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 533, Portland, Oregon, September 23, 1944
- ItemWWASPSS-06-107 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 533, Portland, Oregon, August 1946
- ItemWWASPSS-06-108 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 533, Portland, Oregon, May 1947
- ItemWWASPSS-06-109 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 533, Vancouver, Washington, September 1953
- ItemWWASPSS-06-110 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 534, undated
- ItemWWASPSS-06-111 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 535, October 9, 1951