Railroad Archives Online
- CollectionE0018 - Norm Keyes Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3001 - Steam Locomotives
- 985 more...
- Item40.S.97.04 - Great Northern Steam Locomotive 2500, undated
- Item40.S.97.05 - Great Northern Steam Locomotive 2500 at Minneapolis, Minnesota, 1950
- Item40.S.97.06 - Great Northern Steam Locomotive 2501 at Seattle, Washington, 1945
- Item40.S.97.07 - Great Northern Steam Locomotive 2502 at Portland, Oregon, 1947
- Item40.S.97.08 - Great Northern Steam Locomotive 2503 at Saint Paul, Minnesota, 1948
- Item40.S.97.09 - Great Northern Steam Locomotive 2504 at Superior, Wisconsin, 1948
- Item40.S.97.10 - Great Northern Steam Locomotive 2505 at Fargo, North Dakota, 1955
- Item40.S.97.11 - Great Northern Steam Locomotive 2506 at Portland, Oregon, 1947
- Item40.S.97.12 - Great Northern Steam Locomotive 2500, 1923
- 81 more...