Burlington Northern diesel locomotive 752, formerly Northern Pacific 6019A, at Auburn, Washington in 1971. Number 752 is an F7A built by General Motors Electro Motive Division (EMD), builder's number 15672. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 752, formerly Northern Pacific 6019A, at Auburn, Washington, circa 1971. Number 752 is an F7A built by General Motors Electro Motive Division (EMD), builder's number 15672. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 753, formerly Northern Pacific 6019B, at Auburn, Washington, on May 19, 1971. Number 753 is an F7B built by General Motors Electro Motive Division (EMD), builder's number 15676. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 753, formerly Northern Pacific 6019B, at Auburn, Washington in 1979. Number 753 is an F7B built by General Motors Electro Motive Division (EMD), builder's number 15676. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 757, formerly Northern Pacific 6020B, at Auburn, Washington, on March 15, 1971. Number 757 is an F7B built by General Motors Electro Motive Division (EMD), builder's number 15678. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight yard.

Burlington Northern diesel locomotive 758, formerly Northern Pacific 6020D, at Auburn, Washington, on March 01, 1971. Number 758 is an F7A built by General Motors Electro Motive Division (EMD), builder's number 15675. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, roundhouse.

Burlington Northern diesel locomotive 758, formerly Northern Pacific 6020D, at Auburn, Washington, on September 30, 1975. Number 758 is an F7A built by General Motors Electro Motive Division (EMD), builder's number 15675. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 761, formerly Northern Pacific 6012C, at Auburn, Washington, on February 17, 1971. Number 761 is an F7B built by General Motors Electro Motive Division (EMD), builder's number 10931. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 761, formerly Northern Pacific 6012C, at Auburn, Washington, on March 01, 1971. Number 761 is an F7B built by General Motors Electro Motive Division (EMD), builder's number 10931. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 763, formerly Northern Pacific 6011C/6000C, at Auburn, Washington, circa 1971. Number 763 is an F3B built by General Motors Electro Motive Division (EMD), builder's number 3875. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 763 at Auburn, Washington, circa 1972. Number 763 is an F3, F7 built by General Motors Electro Motive Division (EMD). Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 800, formerly Northern Pacific 7000A, at Auburn, Washington, on April 26, 1971. Number 800 is an F9A built by General Motors Electro Motive Division (EMD), builder's number 19048. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 806, formerly Northern Pacific 7001D, at Auburn, Washington, on August 10, 1970. Number 806 is an F9A built by General Motors Electro Motive Division (EMD), builder's number 19051. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 806 at Auburn, Washington, on August 10, 1970. Number 806, an F9A, is shown with Chicago, Burlington, and Quincy GP40 number 624 in front of the locomotive shop. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 806 at Auburn, Washington, on August 10, 1970. Number 806, an F9A, is shown with Chicago, Burlington, and Quincy GP40 number 624 in front of the locomotive shop. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 807, formerly Northern Pacific 7001C, at Auburn, Washington, on July 12, 1971. Number 807 is an F9B built by General Motors Electro Motive Division (EMD), builder's number 19055. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 8123 at Auburn, Washington, circa 1981. Number 8123 is an SD40-2 built by General Motors Electro Motive Division (EMD), builder's number 786256-34. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 818, formerly Northern Pacific 7004D, at Auburn, Washington, on March 28, 1971. Number 818 is an F9A built by General Motors Electro Motive Division (EMD), builder's number 19743. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, roundhouse.

Burlington Northern diesel locomotive 821 at Auburn, Washington, on February 17, 1971. Number 821, an ex-Northern Pacific F9B, is shown with F7B number 761 and F3B number 707. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 824, formerly Northern Pacific 7006A, at Auburn, Washington in 1979. Number 824 is an F9A built by General Motors Electro Motive Division (EMD), builder's number 19746. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 825, formerly Northern Pacific 7006B, at Auburn, Washington in 1979. Number 825 is an F9B built by General Motors Electro Motive Division (EMD), builder's number 19756. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 827, formerly Northern Pacific 7006C, at Auburn, Washington, on February 17, 1972. Number 827 is an F9B built by General Motors Electro Motive Division (EMD), builder's number 19757. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 828, formerly Northern Pacific 7010A, at Auburn, Washington, on August 15, 1980. Number 828 is an F9A built by General Motors Electro Motive Division (EMD), builder's number 21104. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, accident, roundhouse.

Burlington Northern diesel locomotive 830, formerly Northern Pacific 7008D, at Auburn, Washington, on September 14, 1970. Number 830 is an F9A built by General Motors Electro Motive Division (EMD), builder's number 20298. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 833, formerly Northern Pacific 7009B, at Auburn, Washington, on April 26, 1971. Number 833 is an F9B built by General Motors Electro Motive Division (EMD), builder's number 20303. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 839, formerly Northern Pacific 7012B, at Auburn, Washington, on June 02, 1971. Number 839 is an F9B built by General Motors Electro Motive Division (EMD), builder's number 21118. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 840, formerly Northern Pacific 7012D, at Auburn, Washington, on September 23, 1980. Number 840 is an F9A built by General Motors Electro Motive Division (EMD), builder's number 21109. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, roundhouse.

Burlington Northern diesel locomotive 843, formerly Northern Pacific 7013B, at Auburn, Washington in 1979. Number 843 is an F9B built by General Motors Electro Motive Division (EMD), builder's number 21120. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.