Railroad Archives Online
- CollectionD0288 - Terence Wahl Collection
- Series008 - Union Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3003 - Freight Cars
- ItemTRWahl0685 - Union Pacific Boxcar 163329, Bellingham, Washington, undated
- ItemTRWahl0686 - Union Pacific Boxcar 163329, Bellingham, Washington, undated