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
- 229 more...
- ItemWWANT265 - Northern Pacific steam locomotive number 2261 at Auburn, Washington, circa 1946.
- ItemWWANT266 - Northern Pacific steam locomotive number 2262 at Black River, Washington, circa 1928.
- ItemWWANT267 - Northern Pacific steam locomotive number 2262 at Argo, Washington, circa 1940.
- ItemWWANT268 - Northern Pacific steam locomotive number 2262 at Seattle, Washington, circa 1928.
- ItemWWANT269 - Northern Pacific steam locomotive number 2263 at Kent, Washington, circa 1940.
- ItemWWANT270 - Northern Pacific steam locomotive number 2263 at Ostrander, Washington, circa 1940.
- ItemWWANT271 - Northern Pacific steam locomotive number 2264 at Seattle, Washington, circa 1940.
- ItemWWANT272 - Northern Pacific steam locomotive number 2264 at Seattle, Washington, circa 1940.
- ItemWWANT273 - Northern Pacific steam locomotive number 2264 at Argo, Washington, circa 1940.
- 30 more...