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
- 95 more...
- ItemJMF17-12467.0 - Southern Pacific diesel locomotive 6612 at Tacoma, Washington in 1974.
- ItemJMF17-12291.0 - Southern Pacific diesel locomotive 8464 at Fort Worth, Texas in 1978.
- ItemJMF17-12342.0 - Southern Pacific diesel locomotive 8250 at Tacoma, Washington in 1986.
- ItemJMF17-12343.0 - Southern Pacific diesel locomotive 7357 at Ruston, Washington in 1987.
- ItemJMF17-12341.0 - Southern Pacific diesel locomotive 7357 at Tacoma, Washington in 1987.