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 3002 - Diesel locomotives
- 631 more...
- ItemJMF02-03899.3 - Northern Pacific diesel locomotive 7000 at Muir, Montana, in 1954.
- ItemJMF02-03899.4 - Northern Pacific diesel locomotive 7000 at Muir, Montana, in 1954.
- ItemJMF02-03899.5 - Northern Pacific diesel locomotive 7000 at Muir, Montana, in 1954.
- ItemJMF02-03900.0 - Northern Pacific diesel locomotive 857 at Muir, Montana, in 1955.
- ItemJMF02-03900.1 - Northern Pacific diesel locomotive 857 at Muir, Montana, in 1955.
- ItemJMF02-03916.0 - Northern Pacific diesel locomotive 6007 at Mandan, North Dakota, in 1950.
- ItemJMF02-03917.0 - Northern Pacific diesel locomotive 6011 at Scoria, North Dakota, in 1950.
- ItemJMF04-02596.0 - Northern Pacific passenger trains at Kanaskat, Washington, circa 1959.
- ItemJMF04-02597.0 - Northern Pacific special train at Kanaskat, Washington, in 1959.
- 9 more...