Railroad Archives Online
- CollectionD0288 - Terence Wahl Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2004 - Railroad tracks
- Subseries Level 3003 - Railroad yards
- ItemTRWahl0236 - Great Northern Freight Yard, Bellingham, Washington, undated
- ItemTRWahl0571 - Great Northern Track, Bellingham, Washington, undated
- ItemTRWahl0617 - Great Northern Freight Yard, Bellingham, Washington, undated
- ItemTRWahl1073 - Great Northern Freight Yard, Bellingham, Washington, undated