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
- 39 more...
- ItemTRWahl0367 - Great Northern Gondola 75981, Bellingham, Washington, undated
- ItemTRWahl0452 - Great Northern Boxcar 38701, Bellingham, Washington, undated
- ItemTRWahl0453 - Great Northern Boxcar 48762, Bellingham, Washington, undated
- ItemTRWahl0457 - Great Northern Gondola 72004, Bellingham, Washington, undated
- ItemTRWahl0460 - Great Northern Gondola, Bellingham, Washington, undated
- ItemTRWahl0461 - Great Northern Boxcar 19617, Bellingham, Washington, undated
- ItemTRWahl0462 - Great Northern Covered Hopper Car 73996, Bellingham, Washington, undated
- ItemTRWahl0465 - Great Northern Gondola 76070, Bellingham, Washington, undated
- ItemTRWahl0479 - Great Northern Boxcar 31423, Bellingham, Washington, undated
- 60 more...