Burlington Northern SW7 diesel locomotive Number 108 (ex-Northern Pacific Number 108) in Minneapolis, Minnesota on April 23, 1979. Photo by Al Christianson.

Burlington Northern SW7 diesel locomotive Number 110 (ex-Northern Pacific Number 110) in Minneapolis, Minnesota in 1979. Photo by Al Christianson.

Burlington Northern SW7 diesel locomotive Number 110 (ex-Northern Pacific Number 110) in Minneapolis, Minnesota in 1979. Photo by Al Christianson.

Burlington Northern Diesel Locomotive, Type SW7 Number 141 is coupled to Burlington Northern Diesel Locomotive business cars Como and Lake Superior at Minneapolis, Minnesota on February 10, 1982. Number 141 was built by Electro-Motive Division (EMD) in March, 1950 as Great Northern Number 169, Builder Number 9575. It was retired in October, 1985. BNA-10 "Como" was built by ACF in 1951 (Lot 3444) as Great Northern Lounge Number 1209. BNA-26 "Lake Superior" was built by Budd in 1958 as Northern Pacific Diner Number 459. Photo by Al Christianson.

Burlington Northern Diesel Locomotive, Type SW7 Number 141 is coupled to two unidentified Burlington Northern Diesel Locomotive business cars at Minneapolis, Minnesota on February 10, 1982. Number 141 was built by Electro-Motive Division (EMD) in March, 1950 as Great Northern Number 169, Builder Number 9575. It was retired in October, 1985. Photo by Al Christianson.

Burlington Northern Diesel Locomotive, Type SW9 Number 159 is coupled to a barely visible GP9 Number 1817 at Minneapolis, Minnesota in 1981. Number 159 was built by Electro-Motive Division (EMD) in January, 1953 as Northern Pacific Number 118, Builder Number 17478. It was retired in October, 1983. Front 3/4 view, engineers side. Number 1817 was built by Electro-Motive Division (EMD) 03/54 as Great Northern Number 665, Builder Number 19350. It was retired in 01/85. Photo by Al Christianson.

Burlington Northern Diesel Locomotive, Type SW1200 Number 170 at Minneapolis, Minnesota on April 23, 1979. Number 170 was built by Electro-Motive Division (EMD) in January, 1958 as Northern Pacific Number 170, Builder Number 24034. It was retired in March, 1992. Engineer's side view. Photo by Al Christianson.

Burlington Northern Diesel Locomotive, Type SW1200 Number 211 at Minneapolis, Minnesota on April 16, 1979. Number 211 was built by Electro-Motive Division (EMD) in June, 1957 as Northern Pacific Number 152, Builder Number 22754. Rear view. Photo by Al Christianson.

Burlington Northern Diesel Locomotive, Type SW1200 Number 211 coupled to an unidentified Union Pacific boxcar at Minneapolis, Minnesota on April 15, 1979. Number 211 was built by Electro-Motive Division (EMD) in June, 1957 as Northern Pacific Number 152, Builder Number 22754. Front 3/4, conductor's side view. Photo by Al Christianson.

Burlington Northern SW15 Number 305, former Great Northern 205, in Minneapolis, Minnesota on April 17, 1979. Big Sky Blue paint showing through. Photo by Al Christianson.