Railroad Archives Online
- ArquivoD0011 - James M. Fredrickson Collection
- Série006 - Southern Pacific Railroad Company
- Subsérie014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 004 - Railroad Passenger Cars
- ItemJMF15-06846.0 - Southern Pacific Railroad passenger train at Woodburn, Oregon, circa 1915.
- ItemJMF15-06844.0 - A Southern Pacific Railroad Fairbanks-Morse unit with a commuter train leaves Redwood City, California in 1973.
- ItemJMF15-06845.0 - A Southern Pacific Railroad Commuter train leaves Redwood City, California in 1973.