Northern Pacific steam locomotive 36 at Missoula, Montana, on August 24, 1943. The crew is boarding number 36, a class Y, which was built by Schenectady in 1898. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, railroad crew

Northern Pacific steam locomotive 33 at Missoula, Montana, on September 02, 1953. Number 33, a class Y built by Schenectady in 1898, takes a ride on the turntable. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, turntable, roundhouse

Northern Pacific steam locomotive 33 at Missoula, Montana, on September 02, 1953. Number 33, a class Y built by Schenectady in 1898, eases into stall 30 of the Missoula roundhouse. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roundhouse

Northern Pacific steam locomotive 32 at Missoula, Montana, on August 24, 1943. Number 32, a class Y built by Schenectady in 1898, is parked near the coal dock. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 2687 at Missoula, Montana, on September 02, 1953. Number 2687 is a class A-5 built by Baldwin in 1943. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 2667 at Missoula, Montana, on August 20, 1949. Number 2667 is a class A-3 built by Baldwin in 1938. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 2667 at Missoula, Montana, on August 20, 1949. Number 2667 is a class A-3 built by Baldwin in 1938. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 2665 at Missoula, Montana, on August 20, 1949. Number 2665 is a class A-3 built by Baldwin in 1938. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 2665 making a station stop at Missoula in Montana, circa 1950. Number 2665 is a class A-3 built by Baldwin in 1938. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 2665 with a passenger train at Missoula, Montana, circa 1946. Number 2665 is a class A-3 built by Baldwin in 1938. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo