Northern Pacific steam locomotive 5149 at Laurel, Montana, on May 21, 1954. Number 5149, a class Z-8 built by Alco-Schenectady in 1944, is parked near the roundhouse. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 5146 at Laurel, Montana, on September 04, 1953. Number 5146, a class Z-8 built by Alco-Schenectady in 1944, is shown in the yard. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 5141 at Laurel, Montana, on May 21, 1954. Number 5141 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 Laurel, Montana, on September 04, 1953. 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 5125 park in the yard at Laurel, Montana, circa 1953. 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 5109 at Laurel, Montana, on May 21, 1954. Number 5109 is a class Z-6 built by Alco-Schenectady in 1936. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 5107 at Laurel, Montana, on September 04, 1953. Number 5107 is a class Z-6 built by Alco-Schenectady in 1936. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster photo

A view of the firebox of Northern Pacific steam locomotive 5107 at Laurel in Montana, circa 1949. Number 5107 is a class Z-6 built by Alco-Schenectady in 1936. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 5106 at Laurel, Montana, on September 04, 1953. Number 5106 is a class Z-6 built by Alco-Schenectady in 1936. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 5106 at Laurel, Montana, on September 04, 1953. Number 5106 is a class Z-6 built by Alco-Schenectady in 1936. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 2661 at Laurel, Montana, on September 04, 1953. Number 2661 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 2660 at Laurel, Montana, in 1939. Number 2660 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 2657 at Laurel, Montana, on September 04, 1953. Number 2657 is a class A-2 built by Baldwin in 1935. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1914 at Laurel, Montana, on May 21, 1954. Number 1914 is a class W-2 built by Alco-Brooks in 1904. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1914 at Laurel, Montana, on August 17, 1949. Number 1914 is a class W-2 built by Alco-Brooks in 1904. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1908 at Laurel, Montana, on September 04, 1953. Number 1908 is a class W-2 built by Alco-Brooks in 1904. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1908 at Laurel, Montana, on August 17, 1949. Number 1908 is a class W-2 built by Alco-Brooks in 1904. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1908 at Laurel, Montana, on August 17, 1949. Number 1908 is a class W-2 built by Alco-Brooks in 1904. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1717 at Laurel, Montana, on May 21, 1954. Number 1717 is a class W-3 built by Alco-Brooks in 1913. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1717 at Laurel, Montana, on September 04, 1953. Number 1717 is a class W-3 built by Alco-Brooks in 1913. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1696 at Laurel, Montana, on May 21, 1954. Number 1696 is a class W-1 built by Alco-Schenectady in 1910. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1627 at Laurel, Montana, on May 21, 1954. Number 1627 is a class W built by Alco-Brooks in 1907. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1627 at Laurel, Montana, on May 21, 1954. Number 1627 is a class W built by Alco-Brooks in 1907. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1627 at Laurel, Montana, on September 04, 1953. Number 1627 is a class W built by Alco-Brooks in 1907. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1568 at Laurel, Montana, on September 04, 1953. Number 1568 is a class W built by Alco-Brooks in 1906. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1530 at Laurel, Montana, on September 04, 1954. Number 1530 is a class W built by Alco-Brooks in 1905. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1193 at Laurel, Montana, on September 04, 1953. Number 1193 is a class G-2 built by Alco-Brooks in 1920. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1192 at Laurel, Montana, on September 04, 1953. Number 1192 is a class G-2 built by Alco-Brooks in 1920. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1192 at Laurel, Montana, on August 17, 1949. Number 1192 is a class G-2 built by Alco-Brooks in 1920. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1191 at Laurel, Montana, on May 21, 1954. Number 1191 is a class G-2 built by Alco-Brooks in 1920. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo