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
- 296 more...
- ItemJMF03-02131.0 - Northern Pacific diesel locomotive number 6007 at Easton, Washington, in 1945.
- ItemJMF03-02132.0 - Northern Pacific diesel locomotive number 6008 at Easton, Washington, circa 1945.
- ItemJMF03-02133.0 - Northern Pacific diesel locomotive number 6008 at Easton, Washington, circa 1945.
- ItemJMF03-02134.0 - Northern Pacific diesel locomotive number 6008 at Martin, Washington, circa 1945.
- ItemJMF03-02135.0 - Northern Pacific diesel locomotive number 6008 at Auburn, Washington, circa 1948.
- ItemJMF03-02136.0 - Northern Pacific diesel locomotive number 6009 at Mandan, North Dakota, in 1946.
- ItemJMF03-02137.0 - Northern Pacific diesel locomotive number 6009 at Mandan, North Dakota, in 1946.
- ItemJMF03-02138.0 - Northern Pacific diesel locomotive number 6003 at Dilworth, Minnesota, in 1952.
- ItemJMF03-02138.1 - Northern Pacific diesel locomotive number 6000 at Mandan, North Dakota, in 1950.
- 344 more...