Railroad Archives Online
- ArkivD0237A - Great Northern Railway Historical Society Cascade Division Collection
- Serie003 - Great Northern Railway Company (U.S.)
- Underserie014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 009 - Electric Locomotives
- ObjektGNRHSCD030 - Great Northern Electric Locomotive 5019 near Berne, Washington, undated
- ObjektGNRHSCD037 - Great Northern Electric Locomotive 5018 at Skykomish, Washington, July 31, 1956