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
- 76 more...
- ItemTRWahl0807 - Great Northern Boxcar 29697, Bellingham, Washington, undated
- ItemTRWahl0810 - Great Northern Boxcar, Bellingham, Washington, undated
- ItemTRWahl0893 - Great Northern Covered Hopper Car 71951, Bellingham, Washington, undated
- ItemTRWahl0894 - Great Northern Gondola 74055, Bellingham, Washington, undated
- ItemTRWahl0904 - Great Northern Gondola 75835, Bellingham, Washington, undated
- ItemTRWahl0974 - Great Northern Hopper Car X2052, Bellingham, Washington, undated
- ItemTRWahl0976 - Great Northern Boxcar 23904, Bellingham, Washington, undated
- ItemTRWahl0977 - Great Northern Boxcar 49711, Bellingham, Washington, undated
- ItemTRWahl0978 - Great Northern Freight Train, Bellingham, Washington, undated
- 23 more...