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
- 79 more...
- 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
- ItemTRWahl0981 - Great Northern Gondola 74XXX, Bellingham, Washington, undated
- ItemTRWahl0982 - Great Northern Gondola 74006, Bellingham, Washington, undated
- ItemTRWahl0989 - Great Northern Flat Car 67094, Bellingham, Washington, undated
- 20 more...