Railroad Archives Online
- FondoD0142 - Alden M. Raney Collection
- Serie004 - Northern Pacific Railroad Company materials
- Subserie014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 013 - Railroad Accidents
- Unidad documental simpleAMR-005 - Northern Pacific Railroad Company diesel locomotive 6016D at Portland, Oregon in 1968.
- Unidad documental simpleAMR-067 - Spokane, Portland and Seattle Railway wrecking crane X-25 at Portland, Oregon in 1968.
- Unidad documental simpleAMR-068 - Northern Pacific Railroad Company diesel locomotive 6016D at Portland, Oregon in 1968.
- Unidad documental simpleAMR-069 - Northern Pacific Railroad Company diesel locomotive 6016D at Portland, Oregon in 1968.
- Unidad documental simpleAMR-070 - Northern Pacific Railroad Company diesel locomotive 6016D at Portland, Oregon in 1968.