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 2259 leads a local passenger train at Argo 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 2259 leads Train number 2 eastbound at Ravensdale, Washington, on July 28, 1945. Photo by J.A. Turner. Other Subject Classes: steam locomotive, passenger train

Northern Pacific Class Q-6 steam locomotive number 2259 leads Train number 2 eastbound at Argo Crossing 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 2260 is ready to leave Argo in Seattle, Washington, with a passenger train, circa 1935. Photo by J.A. Turner. Other Subject Classes: steam locomotive,

Northern Pacific Class Q-6 steam locomotive number 2260 awaits its next assignment at the Seattle, Washington, roundhouse, circa 1930. Photo by J.A. Turner. Other Subject Classes: steam locomotive, locomotive facility

Northern Pacific Class Q-6 steam locomotive number 2260 awaits its next assignment at the Seattle, Washington, roundhouse, circa 1940. Photo by J.A. Turner. Other Subject Classes: steam locomotive

Northern Pacific Class Q-6 steam locomotive number 2260 clears its cylinder cocks as it backs to King Street Station in Seattle, Washington, circa 1940. Photo by J.A. Turner. Other Subject Classes: steam locomotive,

Northern Pacific Class Q-6 steam locomotive number 2260 awaits its next assignment on the ready track at the Seattle, Washington, roundhouse, circa 1940. Photo by J.A. Turner. Other Subject Classes: steam locomotive, locomotive facility

Northern Pacific Class Q-6 steam locomotive number 2261 makes a passenger station stop at Auburn, Washington, circa 1946. Photo by J.A. Turner. Other Subject Classes: steam locomotive, passenger train