Railroad Archives Online
- ArkivD0288 - Terence Wahl Collection
- Serie004 - Northern Pacific Railroad Company
- Underserie014 - Photographs
- 004 - Railroad tracks
- 001 - Railroad mainline
- ObjektTRWahl0517 - Northern Pacific Track, Bellingham, Washington, undated
- ObjektTRWahl0646 - Northern Pacific Track, Bellingham, Washington, undated
- ObjektTRWahl0816 - Northern Pacific Track, Bellingham, Washington, undated
- ObjektTRWahl0817 - Northern Pacific Track, Bellingham, Washington, undated
- ObjektTRWahl0871 - Northern Pacific Track, Bellingham, Washington, undated
- 4 mer...