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
- 31 more...
- Itemimg59 - Burlington Northern Diesel Locomotive 423 at Denver, Colorado, 1970
- Itemimg60 - Burlington Northern Diesel Locomotive 424 at Tacoma, Washington, undated
- Itemimg61 - Burlington Northern Diesel Locomotive 429 at Pasco, Washington, 1971
- Itemimg62 - Burlington Northern Diesel Locomotive 429 at Pasco, Washington, 1971
- Itemimg63 - Burlington Northern Diesel Locomotive 436 at Denver, Colorado, 1974
- Itemimg64 - Burlington Northern Diesel Locomotive 436 at Denver, Colorado, 1974
- Itemimg67 - Burlington Northern Diesel Locomotive 458A at Interbay, Washington, 1973
- Itemimg68 - Burlington Northern Diesel Locomotive 460A at Interbay, Washington, 1971
- Itemimg95 - Burlington Northern Diesel Locomotive 2016 at Denver, Colorado, 1970
- 4 more...