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
- 997 more...
- Item40.S.97.16 - Great Northern Steam Locomotive 2510, undated
- Item40.S.97.17 - Great Northern Steam Locomotive 2510 at Whitefish, Montana, 1936
- Item40.S.97.18 - Great Northern Steam Locomotive 2511, undated
- Item40.S.97.19 - Great Northern Steam Locomotive 2505, undated
- Item40.S.97.20 - Great Northern Steam Locomotive 2513 at Minot, North Dakota, 1947
- Item40.S.97.21 - Great Northern Steam Locomotive 2513, undated
- Item40.S.97.22 - Great Northern Steam Locomotive 2513, undated
- Item40.S.97.23 - Great Northern Steam Locomotive 2514, undated
- Item40.S.97.24 - Great Northern Steam Locomotive 2514, undated
- 69 more...