Northern Pacific 5124, a class Z-7, hauls a westbound extra freight out of the yard at Livingston, Montana, on May 23, 1952. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, freight train, stock car.

Northern Pacific steam locomotive 5124 at Livingston, Montana, on May 23, 1954. Number 5124 is a class Z-7 built by Alco-Schenectady in 1941. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 5125 at Livingston, Montana, on June 08, 1955. Number 5125 is a class Z-7 built by Alco-Schenectady in 1941. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 5125 at Livingston, Montana, on June 08, 1955. Number 5125 is a class Z-7 built by Alco-Schenectady in 1941. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 5126 at Livingston, Montana, on August 23, 1943. Number 5126 is a class Z-7 built by Alco-Schenectady in 1941. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 5131 at Livingston, Montana, on May 23, 1952. Number 5131 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 5136 at Livingston, Montana, on May 23, 1952. Number 5136 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 5147 at Livingston, Montana, on May 23, 1952. Number 5147, a class Z-8 built by Alco-Schenectady in 1944, passes with a freight train. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in freight train

Northern Pacific steam locomotive 5147 at Livingston, Montana, on May 23, 1952. Number 5147, a class Z-8 built by Alco-Schenectady in 1944, passes with a freight train. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in freight train

Northern Pacific passenger train number 26, the eastbound North Coast Limited, led by diesel locomotive number 6513, along the Yellowstone River at Elton Bluffs, Montana, circa 1954. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, diesel locomotive, river