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 3005 - Maintenance of Way cars
- 40 more...
- ItemJMF08-05487.0 - Northern Pacific Railroad Inspection Car at Tacoma, Washington in 1915.
- ItemJMF08-05489.0 - Northern Pacific Railroad Work Train at Tacoma, Washington in March, 1971.
- ItemJMF17-12811.0 - Northern Pacific rotary snow plow number 42 at Eagle Gorge, Washington in 1972.
- ItemJMF17-12819.0 - Northern Pacific rotary snow plow number 42 at Eagle Gorge, Washington in 1972.
- ItemJMF17-12826.0 - Northern Pacific rotary snow plow number 42 at Lester, Washington in 1972.
- ItemJMF17-12800.0 - Northern Pacific rotary snow plow number 42 at Stampede, Washington in 1972.
- ItemJMF17-12801.0 - Northern Pacific rotary snow plow number 42 at Stampede, Washington in 1972.
- ItemJMF17-12802.0 - Northern Pacific rotary snow plow number 42 at Stampede, Washington in 1972.
- ItemJMF17-12803.0 - Northern Pacific rotary snow plow number 42 at Stampede, Washington in 1972.
- 23 more...