Northern Pacific diesel locomotive number 128 in a yard at Seattle, Washington, in 1947. NP 128 is a VO 660 and was built by Baldwin in 1940. This unit was renumbered to NP 650 in 1950. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive

Northern Pacific diesel locomotive number 101 in a yard at Seattle, Washington, in 1944. NP 101 is a NW-2 built by Electro Motive Division of General Motors Company in 1940 and was included in the second group six diesels that the NP purchased. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive

Northern Pacific diesel locomotive number 100 in a yard at Seattle, Washington, circa 1939. NP 100 is a NW-1 built by Electro Motive Division of General Motors Company in 1938. This unit was the first diesel purchased by the NP and served on the Seattle docks until March 1940 and then subsequently served in Minneapolis and Brainerd. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive

Northern Pacific diesel locomotive 6511 an Electro-Motive Division Type F7A, at Seattle, Washington at King Street Station. Other subject categories: Locomotive-Diesel, Train-Passenger

Northern Pacific 6506C, an Electro-Motive Division Type FP5A, Northern Pacific 6503C, a Type FP3B, and Northern Pacific 6503C, a Type FP3A at Seattle, Washington, August 15, 1962.

Northern Pacific 6506C, an Electro-Motive Division Type FP5A, Northern Pacific 6503C, a Type FP3B, and Northern Pacific 6503C, a Type FP3A at Seattle, Washington, August 15, 1962.

Northern Pacific 6506C, an Electro-Motive Division Type FP5A, Northern Pacific 6503C, a Type FP3B, and Northern Pacific 6503C, a Type FP3A at Seattle, Washington, August 15, 1962.

Northern Pacific diesel locomotive 6504 at Seattle, Washington led by F3 6504, near Hanford Street roundhouse. Other subject categories: Locomotive-Diesel, Train-Passenger, F3A, Signal-Crossing