Railroad Archives Online
- CollectionD0288 - Terence Wahl Collection
- Series002 - Chicago, Milwaukee, St. Paul, and Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3002 - Diesel Locomotives
- 28 more...
- ItemTRWahl0945 - Milwaukee Road Diesel Locomotive 2225, Bellingham, Washington, undated
- ItemTRWahl0946 - Milwaukee Road Diesel Locomotive 2225, Bellingham, Washington, undated
- ItemTRWahl0947 - Milwaukee Road Diesel Locomotive 2225, Bellingham, Washington, undated
- ItemTRWahl0956 - Milwaukee Road Diesel Locomotive 2225, Bellingham, Washington, undated
- ItemTRWahl0957 - Milwaukee Road Diesel Locomotive 2225, Bellingham, Washington, undated
- ItemTRWahl0958 - Milwaukee Road Diesel Locomotive 2225, Bellingham, Washington, undated
- ItemTRWahl0959 - Milwaukee Road Diesel Locomotive 2225, Bellingham, Washington, undated
- ItemTRWahl0993 - Milwaukee Road Diesel Locomotive 1637, Bellingham, Washington, undated
- ItemTRWahl0994 - Milwaukee Road Diesel Locomotive 1637, Bellingham, Washington, undated
- 2 more...