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 3002 - Diesel Locomotives
- 287 more...
- ItemWWASPSL4-077 - Spokane, Portland, and Seattle (SP&S) Diesel Locomotive 303, Washington State, circa 1969
- ItemWWASPSL4-083 - Spokane, Portland, and Seattle (SP&S) Diesel Locomotive 859 at Avery, Washington, May 11, 1969
- ItemWWASPSL4-084 - Spokane, Portland, and Seattle (SP&S) Diesel Locomotive 803 at Avery, Washington, May 11, 1969
- ItemWWASPSL4-085 - Spokane, Portland, and Seattle (SP&S) Diesel Locomotive 333 at Avery, Washington, April 1970
- ItemWWASPSL4-088 - Spokane, Portland, and Seattle (SP&S) Diesel Locomotive 340, Avery, Washington, undated
- ItemWWASPSL4-094 - Spokane, Portland, and Seattle (SP&S) Diesel Locomotive 865, Washington State, undated
- ItemWWASPSL4-097 - Spokane, Portland, and Seattle (SP&S) Diesel Locomotive 750, Washington State, undated
- ItemWWASPSL4-112 - Spokane, Portland, and Seattle (SP&S) Diesel Locomotive 98, Washington State, undated
- ItemWWASPSL4-116 - Spokane, Portland, and Seattle (SP&S) Diesel Locomotives 330 and 331, Washington State, undated
- 57 more...