Railroad Archives Online
- CollectionD0255 - Casey Adams Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3002 - Diesel Locomotives
- ItemCRAGND001 - Great Northern Diesel Locomotive Switcher NW2 5302, undated
- ItemCRAGND002 - Great Northern Diesel Locomotive Switcher NW2 5307, undated
- ItemCRAGND003 - Great Northern Diesel Locomotive NW3 5406 at Minot, North Dakota, 1942
- ItemCRAGND004 - Great Northern Diesel Locomotives About to Enter a Tunnel, 1955
- ItemCRAGND005 - Great Northern Diesel Locomotive Switcher NW2 5328, undated
- ItemCRAGND006 - Great Northern Diesel Locomotive GP7 602, undated
- ItemCRAGND007 - Great Northern Diesel Locomotives F-3's Pulling a Passenger Train, undated
- ItemCRAGND008 - Great Northern Diesel Locomotives FT's Pulling a Freight, undated
- 83 more...