Railroad Archives Online
- CollectionD0036 - George Werkema Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2003 - Railroads--Buildings and Structures
- Subseries Level 3003 - Maintenance Facilities
- ItemWerkema601 - Northern Pacific water tank at Easton, Washington, in 1987.
- ItemWerkema606 - Burlington Northern turntable at Pasco, Washington, in 1984.
- ItemWerkema607 - Burlington Northern turntable at Pasco, Washington, in 1984.
- ItemWerkema608 - Burlington Northern turntable and roundhouse at Pasco, Washington, in 1984.
- ItemWerkema609 - Burlington Northern turntable at Pasco, Washington, in 1984.
- 4 more...