Railroad Archives Online
- CollectionD0036 - George Werkema Collection
- Series001 - Burlington Northern Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3002 - Diesel Locomotives
- 4 more...
- ItemWerkema009 - Burlington Northern 5617 at diesel shop in Denver, Colorado, in 1970.
- ItemWerkema010 - Burlington Northern 5617 at diesel shop in Denver, Colorado, in 1970.
- ItemWerkema011 - Burlington Northern 5619 parked at the diesel shop in Denver, Colorado, in 1970.
- ItemWerkema012 - Burlington Northern 5619 parked at the diesel shop in Denver, Colorado, in 1970.
- ItemWerkema013 - Burlington Northern 5620 parked at the diesel shop in Denver, Colorado, in 1970.
- ItemWerkema014 - Burlington Northern 6404 at Denver, Colorado, in 1972.
- ItemWerkema015 - Burlington Northern 6412 at the diesel shop in Denver, Colorado, in 1971..
- ItemWerkema016 - Burlington Northern 6421 at the diesel shop in Denver, Colorado, in 1972.
- ItemWerkema017 - Burlington Northern 725 at the Interbay roundhouse in Seattle, Washington, in 1971.
- 31 more...