Railroad Archives Online
- FondoD0011 - James M. Fredrickson Collection
- Serie002 - Chicago, Milwaukee, St. Paul, and Pacific Railroad Company
- Subserie014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 003 - Freight Cars
- Unidad documental simpleJMF12-06028.0 - Chicago, Milwaukee, St. Paul & Pacific Railroad Company freight train at Chehalis, Washington in 1975.
- Unidad documental simpleJMF12-06043.0 - Chicago, Milwaukee, St. Paul & Pacific Railroad Company freight train on the bridge at Pedee, Idaho in 1976.