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 3010 - Miscellaneous Structures
- ItemTRWahl0576 - Great Northern Passenger Train, Bellingham, Washington, undated
- ItemTRWahl0949 - Great Northern Dock, Bellingham, Washington, undated
- ItemTRWahl1087 - Great Northern Track, Bellingham, Washington, undated
- ItemTRWahl1098 - Great Northern Waterfront, Bellingham, Washington, undated
- ItemTRWahl0246 - Washington State Highway 9 Bridge, Arlington, Washington, undated
- ItemTRWahl0250 - Washington State Highway 9 Bridge, Arlington, Washington, undated