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
- 504 more...
- ItemChristianson000584 - Burlington Northern 995 at Milnor, North Dakota in 1981
- ItemChristianson000585 - Burlington Northern 995 at Wyndmere, North Dakota in 1981
- ItemChristianson000586 - Burlington Northern 995 at Wyndmere, North Dakota in 1981
- ItemChristianson000587 - Burlington Northern 995 at Wyndmere, North Dakota in 1981
- ItemChristianson000588 - Burlington Northern 7862 at Valley City, North Dakota in 1981
- ItemChristianson000351 - Burlington Northern Diesel Locomotives Number 1750 and Number 1728 in Portland, Oregon in 1982
- ItemChristianson000352 - Burlington Northern Diesel Locomotives Number 1774 and Number 1784 in Portland, Oregon in 1982
- ItemChristianson000353 - Burlington Northern Diesel Locomotives Number 1776 and Number 6501 in Saint Paul, Minnesota in 1979
- ItemChristianson000354 - Burlington Northern Diesel Locomotives Numbers 1858, 787, 832, and 733 in Minneapolis, Minnesota in 1980
- 46 more...