Railroad Archives Online
- CollectionD0504b - Al Christianson Collection - Friends of the Burlington Northern Railroad
- Series001 - Burlington Northern Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3002 - Diesel Locomotives
- 65 more...
- ItemChristianson000098 - Burlington Northern diesel locomotives Number 774, Number 833, Number 784, Number 790 at Minneapolis, Minnesota in 1980
- ItemChristianson000099 - Burlington Northern diesel locomotive Number 774 at Minneapolis, Minnesota in 1980
- ItemChristianson0000100 - Burlington Northern diesel locomotive Number 778 at Minneapolis, Minnesota in 1981
- ItemChristianson000180 - Burlington Northern Power Headed by 1105 with Caboose and Covered Hoppers at Saint Paul, Minnesota in 1980
- ItemChristianson000181 - Burlington Northern Diesel Locomotive Number 1408 at Daytons Bluff, Minnesota in 1981
- ItemChristianson000182 - Burlington Northern Diesel Locomotives Number 1409, Number 1410 at Daytons Bluff, Minnesota in 1981
- ItemChristianson000183 - Burlington Northern Diesel Locomotives Number 1550, Number 6049, Number 1867 at Minneapolis, Minnesota in 1982
- ItemChristianson000184 - Burlington Northern Diesel Locomotives Number 1550, Number 6049, Number 1867 at Minneapolis, Minnesota in 1982
- ItemChristianson000185 - Burlington Northern Diesel Locomotives Number 1619, Number 1592 at Newport, Minnesota in 1981
- 15 more...