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
- 10 more...
- ItemCRAGND200 - Great Northern Diesel Locomotive 2503 at Minot, North Dakota in 1964
- ItemCRAGND201 - Great Northern Diesel Locomotive 551 at Minot, North Dakota in 1957
- ItemCRAGND202 - Great Northern Diesel Locomotive 3020at Minot, North Dakota in 1964
- ItemCRAGND203 - Great Northern Diesel Locomotive 358A at Minot, North Dakota in 1961
- ItemCRAGND204 - Great Northern Diesel Locomotive 722, undated
- ItemCRAGND205 - Great Northern Diesel Locomotive 589 at Hillyard, Washington, 1957
- ItemCRAGND206 - Great Northern Diesel Locomotive 99 in Washington at Seattle, Washington, 1965
- ItemCRAGND207 - Great Northern Diesel Locomotive 350 Leading in North Dakota, 1948
- ItemCRAGND208 - Great Northern Diesel Locomotive 550 in North Dakota, 1961
- 72 more...