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
- 142 more...
- ItemChristianson000213 - Burlington Northern Diesel Locomotive Number 5704 at Wishram, Washington in 1974
- ItemChristianson000214 - Burlington Northern Diesel Locomotives Numbers 5764 and 5750 and 6910 and 5712 at Daytons Bluff, Minnesota in 1980
- ItemChristianson000215 - Burlington Northern Diesel Locomotives Numbers 5728 and 8028 at Minneapolis, Minnesota in 1980
- ItemChristianson000216 - Burlington Northern Diesel Locomotives Numbers 5728 and 8028 at Minneapolis, Minnesota in 1980
- ItemChristianson000217 - Burlington Northern Diesel Locomotives Numbers 5750 and 6822, and St. Louis-San Francisco Railway (Frisco) Diesel Locomotive at Mississippi Street in Minneapolis, Minnesota in 1979
- ItemChristianson000218 - Burlington Northern Diesel Locomotives Numbers 5754 and 8006 at Minneapolis, Minnesota in 1979
- ItemChristianson000219 - Burlington Northern Diesel Locomotives Numbers 5764 and 5750 and 6910 and 5712 at Daytons Bluff, Minnesota in 1980
- ItemChristianson000220 - Burlington Northern Diesel Locomotives Numbers 5764 and 5750 at Daytons Bluff, Minnesota in 1980
- ItemChristianson000221 - Burlington Northern Diesel Locomotives Numbers 5812 and 5598 west of Mullen, Nebraska in 1981
- 4 more...