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 3001 - Steam locomotives
- 661 more...
- ItemJMF00-00195.0 - Northern Pacific steam locomotive 591, circa 1890.
- ItemJMF00-00196.0 - Northern Pacific steam locomotive 602, circa 1900.
- ItemJMF00-00197.0 - Northern Pacific steam locomotive 602 at Duluth, Minnesota, in 1916.
- ItemJMF00-00198.0 - Northern Pacific steam locomotive 602 at Duluth, Minnesota, in 1916.
- ItemJMF00-00199.0.B - Northern Pacific steam locomotive 603 at Philadelphia, Pennsylvania, in 1909.
- ItemJMF00-00200.0 - Northern Pacific steam locomotive 604, circa 1925.
- ItemJMF00-00201.0 - Northern Pacific steam locomotive 605 in 1916.
- ItemJMF00-00202.0 - Northern Pacific steam locomotive 635 at Duluth, Minnesota, in 1916.
- ItemJMF00-00203.0 - Northern Pacific steam locomotive 645 at Mandan, North Dakota, in 1916.
- 1975 more...