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
- 64 more...
- ItemTRWahl0627 - Great Northern Boxcar 41772, Bellingham, Washington, undated
- ItemTRWahl0628 - Great Northern Boxcar 42936, Bellingham, Washington, undated
- ItemTRWahl0675 - Great Northern Boxcar 21941, Bellingham, Washington, undated
- ItemTRWahl0691 - Great Northern Flat Car 64110, Bellingham, Washington, undated
- ItemTRWahl0707 - Great Northern Boxcar 40068, Bellingham, Washington, undated
- ItemTRWahl0719 - Great Northern Boxcar 39123, Bellingham, Washington, undated
- ItemTRWahl0724 - Great Northern Boxcar 42616, Bellingham, Washington, undated
- ItemTRWahl0725 - Great Northern Boxcar 42678, Bellingham, Washington, undated
- ItemTRWahl0743 - Great Northern Flat Car, Bellingham, Washington, undated
- 35 more...