Northern Pacific steam locomotive number 2626 leads passenger train number 408, Seattle-Portland, around a curve at an unknown location in Washington. Photo by Don Miller, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, passenger train

Northern Pacific locomotive crewmen turn steam locomotive number 328, a Class S-10 Ten-wheeler-type steam locomotive, on the turntable at Grantsburg, Wisconsin, in May 1950. Only front end of locomotive visible. J.M. Fredrickson Collection. Other Subject Classes: railroad crew, steam locomotive, turntable

Northern Pacific Class Z-3 steam locomotive number 4005 leads a freight train near Lester, Washington, in 1939. Photo by J.A. Turner. Other Subject Classes: steam locomotive, freight train

Northern Pacific Class Z-3 steam locomotive number 4005 is the rear helper on a westbound freight train near Martin, Washington, in 1924. Photo by J.A. Turner. Other Subject Classes: steam locomotive, freight train

Northern Pacific Class Z-3 steam locomotive number 4006 leads a westbound freight train near Martin, Washington, in 1924. Photo by J.A. Turner. Other Subject Classes: steam locomotive, freight train

Northern Pacific Class Z-3 steam locomotive number 4006 leads an eastbound freight train toward the station at New Stampede, Washington, on June 26, 1926. Photo by J.A. Turner. Other Subject Classes: steam locomotive, freight train

Northern Pacific Class Z-3 steam locomotive number 4008 leads a westbound freight train under the highway bridge at Kanaskat, Washington, on July 25, 1937. Photo by J.A. Turner. Other Subject Classes: steam locomotive, freight train

Northern Pacific Class Z-3 steam locomotive number 4009 is connected to the headend of an eastbound freight train in the yard at Auburn, Washington, circa 1928. Photo by J.A. Turner. Other Subject Classes: steam locomotive, freight yard

Northern Pacific Class Z-3 steam locomotive number 4009 is connected to the headend of an eastbound freight train in the yard at Auburn, Washington, circa 1928. Photo by J.A. Turner. Other Subject Classes: steam locomotive, freight yard

Northern Pacific Class Z-3 steam locomotive number 4009 moves forward to connect as a helper for a westbound freight train over Stampede Pass at Easton, Washington, circa 1928. Photo by J.A. Turner. Other Subject Classes: steam locomotive,