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
- 60 more...
- ItemTRWahl1004 - Great Northern Crane X1841, Bellingham, Washington, undated
- ItemTRWahl1005 - Great Northern Crane X1841, Bellingham, Washington, undated
- ItemTRWahl1006 - Great Northern Crane X1841, Bellingham, Washington, undated
- ItemTRWahl1011 - Great Northern Crane X1841, Bellingham, Washington, undated
- ItemTRWahl1059 - Great Northern Crane, Bellingham, Washington, undated
- ItemTRWahl1077 - Great Northern Maintenance of Way Car 03284, Bellingham, Washington, undated
- ItemTRWahl1081 - Great Northern Foreman's Car 02490, Bellingham, Washington, undated