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
- 1348 more...
- ItemJMF00-00704.0 - Northern Pacific steam locomotive 1556 at Brainerd, Minnesota, in 1954.
- ItemJMF00-00705.0 - Northern Pacific steam locomotive 1557 at Brainerd, Minnesota, in 1954.
- ItemJMF00-00706.0 - Northern Pacific steam locomotive 1557 at Brainerd, Minnesota, in 1954.
- ItemJMF00-00707.0 - Northern Pacific steam locomotive 1557 at Brainerd, Minnesota, in 1954.
- ItemJMF00-00707.1 - Northern Pacific steam locomotive 1558 at St. Paul, Minnesota, in 1934.
- ItemJMF00-00708.0 - Northern Pacific steam locomotive 1561 at Northtown, Minnesota, in 1950.
- ItemJMF00-00709.0 - Northern Pacific steam locomotive 1562 at Livingston, Montana, in 1953.
- ItemJMF00-00710.0 - Northern Pacific steam locomotive 1562 at Livingston, Montana, in 1954.
- ItemJMF00-00711.0 - Northern Pacific steam locomotive 1564 at Portland, Oregon, in 1930.
- 1288 more...