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
- 481 more...
- ItemChristianson000561 - Burlington Northern 9917 at Chicago, Illinois in 1981
- ItemChristianson000562 - Burlington Northern 995 at Breckenridge, Minnesota in 1981
- ItemChristianson000563 - Burlington Northern 995 at Milnor, North Dakota in 1981
- ItemChristianson000564 - Burlington Northern 995 at Gwinner, North Dakota in 1981
- ItemChristianson000565 - Burlington Northern 995 at Wyndmere, North Dakota in 1981
- ItemChristianson000566 - Burlington Northern 995 at Milnor, North Dakota in 1981
- ItemChristianson000567 - Burlington Northern 995 at Milnor, North Dakota in 1981
- ItemChristianson000568 - Burlington Northern 995 at Milnor, North Dakota in 1981
- ItemChristianson000569 - Burlington Northern 995 at Milnor, North Dakota in 1981
- 69 more...