Railroad Archives Online
- CollectionD0288 - Terence Wahl Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3002 - Diesel Locomotives
- 4 more...
- ItemTRWahl0027 - Great Northern Diesel Locomotive 261A, Bellingham, Washington, undated
- ItemTRWahl0031 - Great Northern Diesel Locomotive 260A, Bellingham, Washington, undated
- ItemTRWahl0032 - Great Northern Diesel Locomotive 358C, Bellingham, Washington, undated
- ItemTRWahl0033 - Great Northern Diesel Locomotive 358C, Bellingham, Washington, undated
- ItemTRWahl0034 - Great Northern Diesel Locomotive 227, Bellingham, Washington, undated
- ItemTRWahl0037 - Great Northern Diesel Locomotive 224, Bellingham, Washington, undated
- ItemTRWahl0038 - Great Northern Diesel Locomotive 224, Bellingham, Washington, undated
- ItemTRWahl0045 - Great Northern Diesel Locomotive 501, Bellingham, Washington, undated
- ItemTRWahl0046 - Great Northern Diesel Locomotive 356A, Bellingham, Washington, undated
- 201 more...