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
- 19 more...
- ItemTRWahl0664 - Great Northern Bridge 59, Bellingham, Washington, undated
- ItemTRWahl0885 - Great Northern Track, Berne, Washington, undated
- ItemTRWahl1042 - Great Northern Bridge, Bellingham, Washington, undated
- ItemTRWahl1072 - Great Northern Bridge 58, Bellingham, Washington, undated
- ItemTRWahl1078 - Great Northern Bridge 58.2, Bellingham, Washington, undated
- ItemTRWahl1089 - Great Northern Bridge, Bellingham, Washington, undated
- ItemTRWahl1090 - Great Northern Bridge, Bellingham, Washington, undated