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
- 57 more...
- ItemTRWahl0538 - Great Northern Express Boxcar 29855, Bellingham, Washington, undated
- ItemTRWahl0560 - Great Northern Covered Hopper Car 71193, Bellingham, Washington, undated
- ItemTRWahl0561 - Great Northern Covered Hopper Car 73931, Bellingham, Washington, undated
- ItemTRWahl0563 - Great Northern Boxcar 48301, Bellingham, Washington, undated
- ItemTRWahl0564 - Great Northern Chip Car 79830, Bellingham, Washington, undated
- ItemTRWahl0624 - Great Northern Boxcar 2512, Bellingham, Washington, undated
- ItemTRWahl0626 - Great Northern Boxcar 43980, Bellingham, Washington, undated
- ItemTRWahl0627 - Great Northern Boxcar 41772, Bellingham, Washington, undated
- ItemTRWahl0628 - Great Northern Boxcar 42936, Bellingham, Washington, undated
- 42 more...