Railroad Archives Online
- CollectionD0288 - Terence Wahl Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2003 - Railroads--Buildings and Structures
- Subseries Level 3001 - Bridges
- 7 more...
- ItemTRWahl0157 - Great Northern Bridge 1700.3, East Portal, Washington, undated
- ItemTRWahl0297 - Great Northern Passenger Train, Bellingham, Washington, undated
- ItemTRWahl0298 - Great Northern Passenger Train, Bellingham, Washington, undated
- ItemTRWahl0299 - Great Northern Bridge 59, Bellingham, Washington, undated
- ItemTRWahl0300 - Great Northern Bridge, Bellingham, Washington, undated
- ItemTRWahl0301 - Great Northern Bridge, Bellingham, Washington, undated
- ItemTRWahl0302 - Great Northern Passenger Train, Bellingham, Washington, undated
- ItemTRWahl0554 - Great Northern Bridge, Bellingham, Washington, undated
- ItemTRWahl0557 - Great Northern Bridge, Bellingham, Washington, undated
- 10 more...