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
- 462 more...
- ItemJMF00-00060.1 - Northern Pacific steam locomotive 16, circa 1928.
- ItemJMF00-00061.0 - Northern Pacific steam locomotive 17 circa 1918.
- ItemJMF00-00062.0 - Northern Pacific steam locomotive 17 circa 1918.
- ItemJMF00-00063.0 - Northern Pacific steam locomotive 19 at Billings, Montana, in 1949.
- ItemJMF00-00064.0 - Northern Pacific steam locomotive 19 at Billings, Montana, in 1953.
- ItemJMF00-00065.0 - Northern Pacific steam locomotive 20 at Billings, Montana, in 1949.
- ItemJMF00-00066.0 - Northern Pacific steam locomotive 20 at Billings, Montana, in 1949.
- ItemJMF00-00067.0 - Northern Pacific steam locomotive 20 at Billings, Montana, in 1953.
- ItemJMF00-00068.0 - Northern Pacific steam locomotive 21 at Billings, Montana, in 1949.
- 2174 more...