Railroad Archives Online
- CollectionD0011 - James M. Fredrickson Collection
- Series006 - Southern Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3002 - Diesel locomotives
- 7 more...
- ItemJMF15-06735.0 - Southern Pacific Railroad diesel locomotive number 4420 at Hillsboro, Oregon in 1987.
- ItemJMF15-06736.0 - Southern Pacific Railroad diesel locomotive number 6387 at Tacoma, Washington in 1967.
- ItemJMF15-06737.0 - Southern Pacific Railroad diesel locomotive number 6387 at Tacoma, Washington in 1967.
- ItemJMF15-06738.0 - Southern Pacific Railroad diesel locomotive number 7116 at Auburn, Washington in 1970.
- ItemJMF15-06739.0 - Southern Pacific Railroad diesel locomotive number 7810 at Auburn, Washington in 1970.
- ItemJMF15-06740.0 - Southern Pacific Railroad diesel locomotive number 7943 at Portland, Oregon in 1990.
- ItemJMF15-06741.0 - Southern Pacific Railroad diesel locomotive number 7966 at East Portland, Oregon in 1990.
- ItemJMF15-06742.0 - Southern Pacific Railroad diesel locomotive number 8458 at Truckee, California in 1975.
- ItemJMF15-06743.0 - Southern Pacific Railroad diesel locomotive number 8961 at Eugene, Oregon in 1974.
- 84 more...