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
- 143 more...
- ItemTRWahl0830 - Great Northern Diesel Locomotive 250A, Bellingham, Washington, undated
- ItemTRWahl0844 - Great Northern Diesel Locomotive 361C, Bellingham, Washington, undated
- ItemTRWahl0846 - Great Northern Diesel Locomotive 360A, Bellingham, Washington, undated
- ItemTRWahl0847 - Great Northern Diesel Locomotive 360A, Bellingham, Washington, undated
- ItemTRWahl0849 - Great Northern Diesel Locomotive 365A, Bellingham, Washington, undated
- ItemTRWahl0850 - Great Northern Diesel Locomotive 271A, Bellingham, Washington, undated
- ItemTRWahl0851 - Great Northern Diesel Locomotive 271A, Bellingham, Washington, undated
- ItemTRWahl0852 - Great Northern Diesel Locomotive 251A, Bellingham, Washington, undated
- ItemTRWahl0856 - Great Northern Diesel Locomotive 251A, Bellingham, Washington, undated
- 62 more...