Railroad Archives Online
- CollectionE0480 - Great Northern Railway Historical Society Miscellaneous Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3005 - Maintenance of Way cars
- ItemGNRHSCraneAdjRIBridgeRepair1968 - Great Northern Crane X-1848, Rock Island, Washington, 1968
- ItemGNRHSCraneTurnedRIBridgeJan1968 - Great Northern Crane X-1848, Rock Island, Washington, 1968