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
- 8 more...
- ItemJMF08-05404.0 - Northern Pacific Railroad Box Car Number 207947 at Ridgefield, Washington in August, 1976.
- ItemJMF08-05404.1 - Northern Pacific Railroad Box Car Number 207947, at Ridgefield, Washington in August, 1976.
- ItemJMF08-05404.2 - Northern Pacific Railroad Box Car Number 207947 at Ridgefield, Washington in August, 1976.
- ItemJMF08-05405.0 - Northern Pacific Railroad Supply Car at Yakima, Washington in 1981.
- ItemJMF08-05406.0 - Northern Pacific Railroad Inspection Car Number B-67 at Easton, Washington, circa 1945.
- ItemJMF08-05407.0 - Northern Pacific Railroad Hy-Rail Car Number 2 at Easton, Washington, circa 1962.
- ItemJMF08-05408.0 - Northern Pacific Railroad Steam Shovel, Number 30 at Merriman Pit, Montana in 1944.
- ItemJMF08-05411.0 - Northern Pacific Railroad Rotary Snowplow Number 10 at Easton, Washington, circa 1944.
- ItemJMF08-05412.0 - Northern Pacific Railroad Rotary Snow Plow Number 10 at Auburn, Washington in May 1968.
- 55 more...