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
- 778 more...
- ItemJMF00-00298.0 - Northern Pacific steam locomotive 1049 at Chehalis, Washington, in 1953.
- ItemJMF00-00298.1 - Northern Pacific steam locomotive 1050 at Seattle, Washington, in 1938.
- ItemJMF00-00299.0 - Northern Pacific steam locomotive 1051 at Brainerd, Minnesota, in 1950.
- ItemJMF00-00300.0 - Northern Pacific steam locomotive 1051 at Brainerd, Minnesota, in 1954.
- ItemJMF00-00301.0 - Northern Pacific steam locomotive 1052 at Seattle, Washington, in 1947.
- ItemJMF00-00302.0 - Northern Pacific steam locomotive 1052 at Seattle, Washington, in 1954.
- ItemJMF00-00303.0 - Northern Pacific steam locomotive 1052 at Seattle, Washington, circa 1950.
- ItemJMF00-00304.0 - Northern Pacific steam locomotive 1053 at Tacoma, Washington, in 1947.
- ItemJMF00-00305.0 - Northern Pacific steam locomotive 1054 at Tacoma-McCarver St, Washington, circa 1950.
- 1858 more...