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
- 181 more...
- ItemTRWahl0929 - Great Northern Diesel Locomotive 310A, Bellingham, Washington, undated
- ItemTRWahl0936 - Great Northern Diesel Locomotive 136, Bellingham, Washington, undated
- ItemTRWahl0937 - Great Northern Diesel Locomotive 136, Bellingham, Washington, undated
- ItemTRWahl0938 - Great Northern Diesel Locomotive 136, Bellingham, Washington, undated
- ItemTRWahl0940 - Great Northern Diesel Locomotive 609, Bellingham, Washington, undated
- ItemTRWahl0948 - Great Northern Diesel Locomotive, Bellingham, Washington, undated
- ItemTRWahl0950 - Great Northern Diesel Locomotive 269A, Bellingham, Washington, undated
- ItemTRWahl0951 - Great Northern Diesel Locomotive 266A, Bellingham, Washington, undated
- ItemTRWahl0952 - Great Northern Diesel Locomotive 357A, Bellingham, Washington, undated
- 24 more...