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
- 85 more...
- ItemAdams GN - 054 R - Great Northern Diesel Locomotives Led by 356 at Minot, North Dakota in 1951
- ItemAdams GN - 055 R - Great Northern Diesel Locomotives Led by 438 at Minot, North Dakota in 1949
- ItemAdams GN - 056 R - Great Northern Diesel Locomotive 550 at Minot, North Dakota in 1966
- ItemAdams GN - 068 R - Great Northern Diesel Locomotive 5100 at Grand Forks, North Dakota in 1940
- ItemAdams GN - 074 R - Great Northern Diesel Locomotive 5101 in 1938
- ItemCRAGNMISC025 - Great Northern Diesel Locomotive 454-A, undated