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
- 546 more...
- ItemJMF00-00111.0A - Northern Pacific steam locomotive 81 at Sedro Woolley, Washington, in 1907.
- ItemJMF00-00111.1 - Northern Pacific steam locomotive 81 at Tacoma, Washington, in 1933.
- ItemJMF00-00112.0 - Northern Pacific steam locomotive 83 at Brainerd, Minnesota, in 1916.
- ItemJMF00-00113.0 - Northern Pacific steam locomotive 84, circa 1890.
- ItemJMF00-00114.0 - Northern Pacific steam locomotive 84 at Darrington, Washington, circa 1920.
- ItemJMF00-00115.0 - Northern Pacific steam locomotive 84, circa 1914.
- ItemJMF00-00116.0 - Northern Pacific steam locomotive 85 at Pasco, Washington, in 1916.
- ItemJMF00-00117.0a - Northern Pacific steam locomotive 85, circa 1920.
- ItemJMF00-00118.0 - Northern Pacific steam locomotive 87 at Woodinville, Washington, circa 1920.
- 2090 more...