Railroad Archives Online
- CollectionD0142 - Alden M. Raney Collection
- Series010 - Other Railroads
- Subseries Level 1014 - Photographs
- Subseries Level 2004 - Railroad tracks
- Subseries Level 3003 - Railroad yards
- ItemAMR-676 - Portland Terminal Railroad tie tamper at Portland, Oregon in 1984.
- ItemAMR-677 - Portland Terminal Railroad tie tamper at Portland, Oregon in 1984.
- ItemAMR-678 - Portland Terminal Railroad tie tamper at Portland, Oregon in 1984.