Burlington Northern diesel locomotive 1921, formerly Northern Pacific 336, at Tacoma, Washington, on February 16, 1971. Number 1921 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 22739. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, roundhouse.

Burlington Northern diesel locomotive 1916, formerly Northern Pacific 331, at Tacoma, Washington, on April 18, 1971. Number 1916 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 22734. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 1915, formerly Northern Pacific 330, at Tacoma, Washington, on February 16, 1971. Number 1915 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 22733. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 1914, formerly Northern Pacific 329, at Tacoma, Washington, on April 13, 1971. Number 1914 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 22732. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 1900, formerly Northern Pacific 283, at Tacoma, Washington, on April 19, 1971. Number 1900 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 21240. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 1897, formerly Northern Pacific 280, at Tacoma, Washington, on September 20, 1971. Number 1897 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 21237. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 1888, formerly Northern Pacific 265, at Tacoma, Washington in December 1974. Number 1888 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 21222. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 1881, formerly Northern Pacific 258, at Tacoma, Washington in May 1971. Number 1881 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 21430. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 1879, formerly Northern Pacific 256, at Tacoma, Washington in May 1971. Number 1879 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 21428. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 1879, formerly Northern Pacific 256, at Tacoma, Washington in May 1971. Number 1879 is a GP9, GP7 built by General Motors Electro Motive Division (EMD). Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.