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
- 166 more...
- ItemJMF03-02006.0 - Northern Pacific diesel locomotive number 706 at Mandan, North Dakota, in 1950.
- ItemJMF03-02007.0 - Northern Pacific diesel locomotive number 802 at Dilworth, Minnesota, in 1954.
- ItemJMF03-02008.0 - Northern Pacific diesel locomotive number 852 at Duluth, Minnesota, in 1954.
- ItemJMF03-02008.1 - Northern Pacific diesel locomotive number 852 at Duluth, Minnesota, in 1954.
- ItemJMF03-02009.0 - Northern Pacific diesel locomotive number 855 at Duluth, Minnesota, in 1954.
- ItemJMF03-02010.0 - Northern Pacific diesel locomotive number 858 at Tacoma, Washington, in 1970.
- ItemJMF03-02011.0 - Northern Pacific diesel locomotive number 858 at Tacoma, Washington, in 1970.
- ItemJMF03-02012.0 - Northern Pacific diesel locomotive number 858 at Vancouver, Washington, in 1970.
- ItemJMF03-02013.0 - Northern Pacific diesel locomotive number 859 at Bozeman, Montana, in 1955.
- 474 more...