Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series002 - Chicago, Milwaukee, St. Paul, and Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3009 - Electric Locomotives
- 14 more...
- ItemWWAMP1529 - Milwaukee Road electric locomotive Number E28 at Seattle, Washington, undated.
- ItemWWAMP1531 - Milwaukee Road electric locomotive Number E28 at Sumner, Washington, undated.
- ItemWWAMP1533 - Milwaukee Road electric locomotive Number E28 at Sumner, Washington, undated.
- ItemWWAMP1966 - Milwaukee Road electric locomotive on the Change Creek bridge near Garcia, Washington in 1927.
- ItemWWAMP2304 - Milwaukee Road E-1 arriving at Tacoma, Washington in 1941.