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 3003 - Freight Cars
- 48 more...
- ItemTRWahl0503 - Great Northern Tank Car, Bellingham, Washington, undated
- ItemTRWahl0504 - Great Northern Flat Car 65584, Bellingham, Washington, undated
- ItemTRWahl0505 - Great Northern Flat Car 65584, Bellingham, Washington, undated
- ItemTRWahl0522 - Great Northern Gondola 72666, Bellingham, Washington, undated
- ItemTRWahl0523 - Great Northern Gondola 74710, Bellingham, Washington, undated
- ItemTRWahl0528 - Great Northern Gondola 79760, Bellingham, Washington, undated
- ItemTRWahl0532 - Great Northern Boxcar 42792, Bellingham, Washington, undated
- ItemTRWahl0535 - Great Northern Boxcar 35065, Bellingham, Washington, undated
- ItemTRWahl0537 - Great Northern Hopper Car X2052, Bellingham, Washington, undated
- 51 more...