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 3005 - Maintenance of Way cars
- 12 more...
- ItemTRWahl0534 - Great Northern Scale Test Car, Bellingham, Washington, undated
- ItemTRWahl0577 - Great Northern Maintenance of Way Car 05303, South Bellingham, Washington, undated
- ItemTRWahl0578 - Great Northern Tool Car 06062, South Bellingham, Washington, undated
- ItemTRWahl0579 - Great Northern Tool Car 02661, South Bellingham, Washington, undated
- ItemTRWahl0605 - Great Northern Crane X1796, Bellingham, Washington, undated
- ItemTRWahl0625 - Great Northern Detector Car R-3, Bellingham, Washington, undated
- ItemTRWahl0630 - Great Northern Maintenance of Way Car 03284, Bellingham, Washington, undated
- ItemTRWahl0631 - Great Northern Maintenance of Way Car 03284, Bellingham, Washington, undated
- ItemTRWahl0632 - Great Northern Maintenance of Way Car 03284, Bellingham, Washington, undated
- 46 more...