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
- 2495 more...
- ItemJMF00-01706.0 - Northern Pacific steam locomotive 5100 at Schenectady, New York, in 1936.
- ItemJMF00-01707.0 - Northern Pacific steam locomotive 5100 at Livingston, Montana, in 1943.
- ItemJMF00-01708.0 - Northern Pacific steam locomotive 5100 at Garrison, Montana, in 1952.
- ItemJMF00-01709.0 - Northern Pacific steam locomotive 5100 at Livingston, Montana, circa 1955.
- ItemJMF00-01710.0 - Northern Pacific steam locomotive 5100 at Garrison, Montana, circa 1955.
- ItemJMF00-01711.0 - Northern Pacific steam locomotive 5100, circa 1952.
- ItemJMF00-01712.0 - Northern Pacific steam locomotive 5100 at South Tacoma, Washington, in 1957.
- ItemJMF00-01712.1 - Northern Pacific steam locomotive 5100 at Tacoma, Washington, in 1957.
- ItemJMF00-01713.0 - Northern Pacific steam locomotive 5101 at Livingston, Montana, in 1949.
- 141 more...