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
- 21 more...
- ItemJMF03-01869.A - Northern Pacific diesel locomotive number 127 at Tacoma, Washington, circa 1946.
- ItemJMF03-01870.0 - Northern Pacific diesel locomotive number 128 at Seattle, Washington, in 1947.
- ItemJMF03-01871.0 - Northern Pacific diesel locomotive number 130 at Seattle, Washington, in 1947.
- ItemJMF03-01872.0 - Northern Pacific diesel locomotive number 133 at Tacoma, Washington, in 1970.
- ItemJMF03-01873.0 - Northern Pacific diesel locomotive number 137 at Tacoma, Washington, in 1966.
- ItemJMF03-01874.0 - Northern Pacific diesel locomotive number 144.
- ItemJMF03-01875.0 - Northern Pacific diesel locomotive number 145 at Auburn, Washington.
- ItemJMF03-01876.0 - Northern Pacific diesel locomotive number 145 at Tacoma, Washington, in 1970.
- ItemJMF03-01877.0 - Northern Pacific diesel locomotive number 146.
- 619 more...