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
- Item40.S.05.02 - Great Northern Steam Locomotive 97, undated
- Item40.S.08.01 - Great Northern Steam Locomotive 71 at Saint Paul, Minnesota, 1940
- Item40.S.08.02 - Great Northern Steam Locomotive 70, 1912
- Item40.S.08.03 - Great Northern Steam Locomotive 71 at Minneapolis, Minnesota, undated
- Item40.S.08.04 - Great Northern Steam Locomotive 72, undated
- Item40.S.08.05 - Great Northern Steam Locomotive 72, undated
- Item40.S.09.01 - Great Northern Steam Locomotive 94 at Butte, Montana, 1922
- Item40.S.09.02 - Great Northern Steam Locomotive 23, undated
- Item40.S.09.03 - Great Northern Steam Locomotive 395 at Fargo, North Dakota, 1945
- 1066 more...