Railroad Archives Online
- FondsD0153 - Doug Wingfield Collection
- Série001 - Burlington Northern Railroad Company
- Sous-série014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 002 - Diesel Locomotives
- 11 en plus...
- PièceWingfield.21 - Burlington Northern Diesel Locomotive 1516 at Whitefish, Montana, 1970
- PièceWingfield.22 - Burlington Northern Diesel Locomotive 1530, 1505 at Great Falls, Montana, 1971
- PièceWingfield.24 - Burlington Northern Diesel Locomotive 2030 at Great Falls, Montana, 1971
- PièceWingfield.25 - Burlington Northern Diesel Locomotives 2536, 1747, 1530, 1770 at Summit, Montana, 1971
- PièceWingfield.26 - Burlington Northern Diesel Locomotives 2536, 1747, 1530, 1770 at Summit, Montana, 1971
- PièceWingfield.27 - Burlington Northern Diesel Locomotives 3030, 3629, 2527 at Whitefish, Montana, 1970
- PièceWingfield.28 - Burlington Northern Diesel Locomotives 6418, 428, 423 at Trego, Montana, 1970
- PièceWingfield.29 - Burlington Northern Diesel Locomotive 6429 at Whitefish, Montana, 1970
- PièceWingfield.30 - Burlington Northern Diesel Locomotives 6436, 430, 3613 at Glacier Park, Montana, 1970
- 60 en plus...