Railroad Archives Online
- CollectionD0011 - James M. Fredrickson Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3011 - Railroad cars self-propelled
- 35 more...
- ItemJMF01-03597.8 - Northern Pacific rail diesel car number B-30 at Moscow, Idaho in 1955.
- ItemJMF01-03597.9 - Northern Pacific rail diesel car number B-30 at Moscow, Idaho in 1955.
- ItemJMF01-03598.0 - Northern Pacific motor cars at Lewiston, Idaho in 1955.
- ItemJMF01-03598.1 - Northern Pacific motor cars at Lewiston, Idaho in 1955.
- ItemJMF01-03598.2 - Northern Pacific motor cars at Lewiston, Idaho in 1955.