Railroad Archives Online
- CollectionD0011 - James M. Fredrickson Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3002 - Diesel locomotives
- 10 more...
- ItemJMF03-01850.0 - Northern Pacific diesel locomotive number 120 circa 1949.
- ItemJMF03-01851.0 - Northern Pacific diesel locomotive number 121 circa 1949.
- ItemJMF03-01852.0 - Northern Pacific diesel locomotive number 124 circa 1949.
- ItemJMF03-01853.0 - Northern Pacific diesel locomotive number 126 at Tacoma, Washington, circa 1943.
- ItemJMF03-01853.1 - Northern Pacific diesel locomotive number 126 at Tacoma, Washington, circa 1943.
- ItemJMF03-01853.2 - Northern Pacific diesel locomotive number 126 at Tacoma, Washington, circa 1943.
- ItemJMF03-01855.0 - Northern Pacific diesel locomotive number 126 at Bozeman, Montana, in 1955.
- ItemJMF03-01866.0 - Northern Pacific diesel locomotive number 126 at Auburn, Washington, in 1969.
- ItemJMF03-01867.0 - Northern Pacific diesel locomotive number 127 at Tacoma, Washington, circa 1946.
- 630 more...