Railroad Archives Online
- FondsE0018 - Norm Keyes Collection
- Série003 - Great Northern Railway Company (U.S.)
- Sous-série014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 001 - Steam Locomotives
- 324 en plus...
- Pièce40.S.44.06 - Great Northern Steam Locomotive 957, undated
- Pièce40.S.44.07 - Great Northern Steam Locomotive 950 at Saint Paul, Minnesota, undated
- Pièce40.S.44.08 - Great Northern Steam Locomotive 969 at Havre, Montana, undated
- Pièce40.S.44.09 - Great Northern Steam Locomotive 950, undated
- Pièce40.S.45.01 - Great Northern Steam Locomotive 1067, undated
- Pièce40.S.45.02 - Great Northern Steam Locomotive 1062 at Great Falls, Montana, 1931
- Pièce40.S.45.03 - Great Northern Steam Locomotive 1068, undated
- Pièce40.S.45.04 - Great Northern Steam Locomotive, undated
- Pièce40.S.45.05 - Great Northern Steam Locomotive 1053 at Kalispell, Montana, 1942
- 742 en plus...