Northern Pacific 4016 on a local freight at Lester, Washington, circa 1949. Photo by Vormsberg, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, freight train.

Northern Pacific steam locomotive 4016 at Tacoma, Washington, on February 29, 1944. Number 4016 is a class Z-3 built by Alco-Brooks in 1917. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 4017 at Tacoma, Washington, fresh out of the South Tacoma shops on August 29, 1934. Number 4017 is a class Z-3 built by Alco-Brooks in 1917 J.M. Fredrickson collection. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 4017 at Auburn, Washington, on May 12, 1934. Number 4017, a class Z-3 built by Alco-Brooks in 1917, is parked at the Auburn coal dock. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, coal dock

Northern Pacific steam locomotive 4017 at Garrison, Montana, on September 08, 1946. Number 4017 is a class Z-3 built by Alco-Brooks in 1917. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 4017 at South Tacoma, Washington, on September 17, 1938. Number 4017, a class Z-3 built by Alco-Brooks in 1917, is parked at South Tacoma. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 4017 at Yakima, Washington, on May 31, 1936. Number 4017, a class Z-3 built by Alco-Brooks in 1917, is parked next to the Yakima roundhouse. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roundhouse

Northern Pacific steam locomotive 4017 on March 14 in 1933. Number 4017 is a class Z-3 built by Alco-Brooks in 1917. Photo by Charles R. Iles, J.M. Fredrickson collection. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 4018 at Easton, Washington, on September 18, 1938. Number 4018 is a class Z-3 built by Alco-Brooks in 1917. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo

Northern Pacific steam locomotive 4018 awaits its next train at Martin, Washington, in 1944. Number 4018 is a class Z-3 built by Alco-Brooks in 1917. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo