Northern Pacific steam locomotive 5140 at Missoula, Montana, in August 1943. Number 5140 is a class Z-8 built by Alco-Schenectady in 1943. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 5140 at Missoula, Montana, on April 24, 1950. Number 5140 is a class Z-8 built by Alco-Schenectady in 1943. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 5144 at Missoula, Montana, in September 1953. Number 5144, a class Z-8 built by Alco-Schenectady in 1944, is parked at the engine facility. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster photo

Northern Pacific passenger train number 2, the Vista-Dome North Coast Limited, at the station in Missoula, Montana, with new vista-dome cars, circa 1955. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, passenger car, passengers, passenger station