Railroad Archives Online
- CollectionD0173 - Hal Will Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3001 - Steam Locomotives
- ItemMOHAI.90.24.01 - Great Northern Steam Locomotive 3210 at Edmonds, Washington in 1947.
- ItemMOHAI.90.24.02 - Great Northern Steam Locomotive 2050 at Interbay, Washington in 1947.
- ItemMOHAI.90.24.03 - Great Northern Steam Locomotive 2050 at Interbay, Washington in 1947.
- ItemMOHAI.90.24.06 - Great Northern Steam Locomotive 2056 between Ballard and Richmond Beach, Washington in 1947.
- ItemMOHAI.90.24.07 - Great Northern Steam Locomotive 3237 at Interbay, Washington in 1947.
- ItemMOHAI.90.24.08 - Great Northern Steam Locomotive 2050 at Interbay, Washington in 1947.
- ItemMOHAI.90.24.09 - Great Northern Steam Locomotive 2050 at Interbay, Washington in 1947.
- ItemMOHAI.90.24.13 - Great Northern Steam Locomotive 2050 at Interbay, Washington in 1947.
- 14 more...