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
- 375 more...
- ItemJMF03-02205.0 - Northern Pacific diesel locomotive number 7004 at Livingston, Montana.
- ItemJMF03-02206.0 - Northern Pacific diesel locomotive number 7004 at Auburn, Washington, in 1968.
- ItemJMF03-02207.0 - Northern Pacific diesel locomotive number 7004 at Auburn, Washington, in 1968.
- ItemJMF03-02208.0 - Northern Pacific diesel locomotive number 7004 at Auburn, Washington, in 1968.
- ItemJMF03-02209.0 - Northern Pacific diesel locomotive number 7005 at Auburn, Washington.
- ItemJMF03-02210.0 - Northern Pacific diesel locomotive number 7006 at Auburn, Washington, in 1967.
- ItemJMF03-02211.0 - Northern Pacific diesel locomotive number 7009 at Auburn, Washington, in 1967.
- ItemJMF03-02212.0 - Northern Pacific diesel locomotive number 7009 at Tacoma, Washington, in 1967.
- ItemJMF03-02213.0 - Northern Pacific diesel locomotive number 7010 at Auburn, Washington, in 1967.
- 265 more...