Amtrak diesel locomotive 406, an E9A SN 21602 former Milwaukee 30C and 200C at Minneapolis, Minnesota on June 19, 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Amtrak diesel locomotive 406, an E9A SN 21602 former Milwaukee 30C and 200C at Minneapolis, Minnesota on June 19, 1973. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, passenger train

Burlington Northern 1906, formerly Northern Pacific 321, parked at the frieghthouse at St. Cloud, Minnesota, on July 16, 1978. Northern Pacific 321, a type GP9 built by General Motors Electromotive Division in 1957. Photo by Rick Anderson, GJ Werkema collection. Other subject classes: diesel locomotive, switcher locomotive, GP9

Burlington Northern 2093 (Class GP38-2), Burlington Northern 2091 (Class GP38-2) at Noyes, Minnesota on June 15, 1984. Photo by George Bergson.

Burlington Northern 592, formerly Northern Pacific 106, waits on a service track at St. Paul, Minnesota, on June 5, 1971. The locomotive was built by General Motors Electromotive Division as a type NW2 diesel switcher in 1941. Other subject classes: diesel locomotive, switcher locomotive, NW2

Burlington Northern computer center at Saint Paul, Minnesota, on June 20, 1973. Photo by J.M. Fredrickson. Other Subject Classes: computer center.

Burlington Northern diesel locomotive 113, formerly Northern Pacific 113, at Minneapolis, Minnesota, on June 19, 1973. Number 113 is an SW7 built by General Motors Electro Motive Division (EMD). Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 1354, formerly Great Northern 904, at Minneapolis, Minnesota in August 1972. Number 1354 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 25062. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, roundhouse, heater car.

Burlington Northern diesel locomotive 1354, formerly Great Northern 904, at Minneapolis, Minnesota in August 1972. Number 1354 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 25062. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, roundhouse, heater car.

Burlington Northern diesel locomotive 1354, formerly Great Northern 904, at Minneapolis, Minnesota in August 1972. Number 1354 is an S-2 built by General Motors Electro Motive Division (EMD), builder's number 25062. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, roundhouse.