Railroad Archives Online
- ФондовиE0479 - Great Northern Railway Public Relations Photos
- Серија003 - Great Northern Railway Company (U.S.)
- Подсерија014 - Photographs
- 005 - Landscape photography
- ЈединицаPR.FRT.02 - Great Northern Diesel Locomotive at Appleyard, Washington, undated
- ЈединицаPR.FRT.04 - Great Northern Diesel Locomotives, undated