SP&S 2-8-0 steam locomotive Number 337, Class N-7, at Portland, Oregon. This locomotive was formerly Northern Pacific Number 1291 and was built by the Schenectady Locomotive Works in May 1903. Photo by Herbert Arey.

SP&S 2-8-0 steam locomotive Number 337, Class N-7, at the shops at Portland, Oregon.

SP&S 2-8-0 steam locomotive Number 337, Class N-7, at Portland, Oregon on June 30, 1948.

SP&S 2-8-0 steam locomotive Number 336, Class N-7, at Portland, Oregon. This locomotive was formerly Northern Pacific Number 1288 built by Schenectady Locomotive Works in May 1903. From the Railroad Museum of Pennsylvania Collection.

SP&S 2-8-0 steam locomotive Number 336, Class N-7, at Portland, Oregon in September 1936. Photo by Herbert Arey.

SP&S 2-8-0 steam locomotive Number 336, Class N-7, at Portland, Oregon on May 25, 1941.

SP&S 2-8-0 steam locomotive Number 336, Class N-7, at Portland, Oregon on June 8, 1944. Coupled to the locomotive is maintenance of way car X-82 that was placed into service during World War Two as a caboose due to a shortage.

SP&S 2-8-0 steam locomotive Number 335, Class N-7, at Vancouver, Washington in 1940. This locomotive was formerly Northern Pacific Number 1283 that was built by Schenectady Locomotive Works in May 1903.

SP&S 2-8-0 steam locomotive Number 335, Class N-7, near the shops at Portland, Oregon. Photo by Herbert Arey.

SP&S 2-8-0 steam locomotive Number 335, Class N-7, on the ready tracks at Portland, Oregon. Photo by Herbert Arey.