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
- 44 more...
- ItemJMF03-01891.1 - Northern Pacific diesel locomotive number 175 at Eddystone, Pennsylvania, in 1948.
- ItemJMF03-01891.2 - Northern Pacific diesel locomotive number 176 at Spokane, Washington, in 1948.
- ItemJMF03-01892.0 - Northern Pacific diesel locomotive number 177 at Pasco, Washington, in 1948.
- ItemJMF03-01893.0 - Northern Pacific diesel locomotive number 206 at Kelso, Washington, in 1970.
- ItemJMF03-01894.0 - Northern Pacific diesel locomotive number 211 at Garrison, Montana, in 1955.
- ItemJMF03-01895.0 - Northern Pacific diesel locomotive number 214 at Auburn, Washington, in 1967.
- ItemJMF03-01896.0 - Northern Pacific diesel locomotive number 214 at Tacoma, Washington, in 1970.
- ItemJMF03-01897.0 - Northern Pacific diesel locomotive number 214 at Auburn, Washington, in 1970.
- ItemJMF03-01898.0 - Northern Pacific diesel locomotive number 215 at Tacoma, Washington, in 1970.
- 596 more...