Railroad Archives Online
- FondsD0170a - Cascade Rail Foundation Walt Ainsworth Photograph Collection
- Cyfres002 - Chicago, Milwaukee, St. Paul, and Pacific Railroad Company
- Is-gyfres014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 009 - Electric Locomotives
- EitemWWA-0056 - Milwaukee Road Class E-5 Number E39 boxcab electric set south of Seattle, Washington, undated.
- EitemWWA-0082 - Milwaukee Road Number E4 south of Seattle, Washington near Black River Junction, undated.
- EitemWWA-0093 - Milwaukee Road boxcab Number E-22 at Black River, Washington in 1963.
- EitemWWA-0344 - A Milwaukee Road boxcab locomotive set along the Yakima River in Washington, undated.
- EitemWWA-0346 - Milwaukee Road Number E-22 eastbound at Ellensburg, Washington in 1965.
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