Railroad Archives Online
- CollectionD0011 - James M. Fredrickson Collection
- Series008 - Union Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3004 - Railroad Passenger Cars
- ItemJMF13-05834.0 - Union Pacific Railroad passenger car number 366, undated.
- ItemJMF13-05835.0 - Union Pacific Railroad passenger car number 867 at Tacoma, Washington in 1935.
- ItemJMF13-05836.0 - Union Pacific Railroad passenger car number 879 at Tacoma, Washington in 1935.
- ItemJMF13-05837.0 - Union Pacific Railroad passenger car number 994 at Tacoma, Washington, undated.