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
- 121 more...
- ItemChristianson00042 - Burlington Northern Diesel Locomotive Number 141 and Two Burlington Northern Business Cars at Minneapolis, Minnesota In 1982
- ItemChristianson00043 - Burlington Northern Diesel Locomotive Number 158 at Saint Paul, Minnesota In 1979
- ItemChristianson00044 - Burlington Northern Diesel Locomotive Number 158 at Saint Paul, Minnesota In 1979
- ItemChristianson00045 - Burlington Northern Diesel Locomotive Number 159 at Minneapolis, Minnesota In 1981
- ItemChristianson00046 - Burlington Northern Diesel Locomotive Number 161 at Denver, Colorado In 1981
- ItemChristianson00047 - Burlington Northern Diesel Locomotive Number 170 at Minneapolis, Minnesota In 1979
- ItemChristianson00048 - Burlington Northern Diesel Locomotives Number 170, Number 452 and Number 305 at Minneapolis, Minnesota In 1979
- ItemChristianson00049 - Burlington Northern Diesel Locomotive Number 211 at Minneapolis, Minnesota In 1979
- ItemChristianson00050 - Burlington Northern Diesel Locomotive Number 211 at Minneapolis, Minnesota In 1979
- 50 more...