Railroad Archives Online
- CollectionD0288 - Terence Wahl Collection
- Series010 - Other Railroads
- Subseries Level 1014 - Photographs
- Subseries Level 2003 - Railroads--Buildings and Structures
- Subseries Level 3010 - Miscellaneous Structures
- ItemTRWahl0555 - Olympic Portland Cement Company Pier, Bellingham, Washington, undated
- ItemTRWahl0730 - Olympic Portland Cement Company Hopper Car 103, Bellingham, Washington, undated
- ItemTRWahl1018 - Olympic Portland Cement Company Pier, Bellingham, Washington, undated
- ItemTRWahl1019 - Olympic Portland Cement Company Pier, Bellingham, Washington, undated
- ItemTRWahl1099 - Olympic Portland Cement Company Pier, Bellingham, Washington, undated
- ItemTRWahl1100 - Olympic Portland Cement Company Pier, Bellingham, Washington, undated