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
- 956 more...
- ItemJMF00-00422.0 - Northern Pacific steam locomotive 1187 at Laurel, Montana, in 1949.
- ItemJMF00-00423.0 - Northern Pacific steam locomotive 1187 at Laurel, Montana, in 1954.
- ItemJMF00-00424.0 - Northern Pacific steam locomotive 1188 at Livingston, Montana, in 1953.
- ItemJMF00-00425.0 - Northern Pacific steam locomotive 1189 at Livingston, Montana, in 1943.
- ItemJMF00-00426.0 - Northern Pacific steam locomotive 1189 at Livingston, Montana, in 1953.
- ItemJMF00-00426.1 - Northern Pacific steam locomotive 1189 at Livingston, Montana, circa 1950.
- ItemJMF00-00427.0 - Northern Pacific steam locomotive 1190 at Laurel, Montana, in 1949.
- ItemJMF00-00427.1 - Northern Pacific steam locomotive 1190 at Livingston, Montana, in 1958.
- ItemJMF00-00428.0 - Northern Pacific steam locomotive 1191 at Laurel, Montana, in 1949.
- 1680 more...