Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3001 - Steam Locomotives
- 17 more...
- ItemWWANT020 - Northern Pacific steam locomotive 2241 at Seattle, Washington, in 1938.
- ItemWWANT021 - Northern Pacific steam locomotive number 1772 at Seattle, Washington, in 1941.
- ItemWWANT022 - Northern Pacific steam locomotive 2264 at Seattle, Washington, circa 1940.
- ItemWWANT023 - Northern Pacific steam locomotive 2260 at Seattle, Washington, circa 1941.
- ItemWWANT024 - Northern Pacific steam locomotive 2247 at Seattle, Washington, circa 1941.
- ItemWWANT025 - Northern Pacific steam locomotive 2610 at Seattle, Washington, circa 1946.
- ItemWWANT026 - Northern Pacific steam locomotive 2264 at Seattle, Washington, circa 1940.
- ItemWWANT027 - Northern Pacific steam locomotive 2264 at Seattle, Washington, circa 1940.
- ItemWWANT029 - Northern Pacific steam locomotive 2249 at Seattle, Washington, circa 1940.
- 242 more...