Northern Pacific Class Q-6 steam locomotive number 2259 waits for a dispatcher's clearance to proceed with its passenger train southbound from Argo, Washington, circa 1935. Photo by J.A. Turner. Other Subject Classes: steam locomotive, passenger train

Northern Pacific Class Q-6 steam locomotive number 2258 awaits its next assignment at Seattle, Washington, on July 24, 1925. Photo by J.A. Turner. Other Subject Classes: steam locomotive,

Northern Pacific Class Q-6 steam locomotive number 2258 clears its cylindar cocks as it leads a daylight passenger train southbound from King Street Station in Seattle, Washington, circa 1935. Photo by J.A. Turner. Other Subject Classes: steam locomotive, passenger train

Northern Pacific Class Q-6 steam locomotive number 2254 waits for the dispatcher's clearance of its passenger train to proceed southbound from Argo in Seattle, Washington, circa 1935. Photo by J.A. Turner. Other Subject Classes: steam locomotive, passenger train

Northern Pacific Class Q-6 Pacific-type steam locomotive number 2247 leads a passenger train at an unknown location, circa 1940. Distant view. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, passenger train

Northern Pacific steam locomotive number 2223 leads a passenger train at St. Paul, Minnesota, circa 1935. Class Q-4 Pacific-type was built by Baldwin Locomotive Works in 1910, passes Great Northern roundhouse near St. Paul Union Station. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, passenger train, roundhouse, railroad yard

Northern Pacific steam locomotive number 2187, Class Q-4 Pacific-type locomotive built by Baldwin Locomotive Works in 1909, leads second engine and two coaches through Union Station at Tacoma, Washington, circa 1940. Train is probably deadheading to Portland to bring two specials north. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, passenger station, railroad yard

Northern Pacific Class Q-4 Pacific-type steam locomotive number 2170 leads a passenger train near Upham, Washington, circa 1914. The fireman looks out from the engine cab, heading a wooden combination baggage-coach, followed by a wooden coach. J.M. Fredrickson Collection. Other Subject Classes: steam locomotive, railroad crew, passenger car

Northern Pacific Class W Mikado-type steam locomotive number 1621 and combination baggage-coach are turned on the wye track at South Bend, Washington, on March 19, 1954. Locomotive will take water at the tank, then switch combine and two cabooses, at right, onto the rear of waiting freight cars for the return trip to Centralia on the train's final run. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, passenger car, caboose, water tank, railroad yard