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.

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

SP&S 2-8-0 steam locomotive Number 335, Class N-7, at Hoyt Street Yard at Portland, Oregon.

SP&S 2-8-0 steam locomotive Number 329, Class N-6, at Vancouver, Washington on January 3, 1943. Photo by Herbert H. Arey.

SP&S 2-8-0 steam locomotive Number 329, Class N-6, at unknown location and date.

SP&S 2-8-0 steam locomotive Number 329, Class N-6, near the yard water tank at Portland, Oregon on May 21, 1941.

SP&S 2-8-0 steam locomotive Number 329, Class N-6, at Portland, Oregon on August 24, 1940. This locomotive was formerly Northern Pacific Number 1273 that was built by the Richmond Locomotive Works in August 1901. Notice the green boiler jacketing.

SP&S 2-8-0 steam locomotive Number 329, Class N-6, at Portland, Oregon in August 1946.

SP&S 2-8-0 steam locomotive Number 329, Class N-6, at Portland, Oregon on April 16, 1940. Photo by Herbert H. Arey

SP&S 2-8-0 steam locomotive Number 328, Class N-6, at Vancouver, Washington on July 1, 1938. This locomotive was formerly Northern Pacific Number 1261 that was built by the Schenectady Locomotive Works in August 1901. Photo by Al Paterson.

SP&S 2-8-0 steam locomotive Number 327, Class N-6, at Portland, Oregon near the water tank in the yard.

SP&S 2-8-0 steam locomotive Number 327, Class N-6, at Portland, Oregon.

SP&S 2-8-0 steam locomotive Number 327, Class N-6, at Portland, Oregon on August 10, 1946. Photo by Frank W. Guernsey.

SP&S 2-8-0 steam locomotive Number 327, Class N-6, at Portland, Oregon on April 11, 1938.

SP&S 2-8-0 steam locomotive Number 327, Class N-6, at Portland, Oregon in 1939. This locomotive was formerly Northern Pacific Number 1251 built by Schenectady Locomotive Works in July 1901. Photo by Herbert H. Arey.

SP&S 2-8-0 steam locomotive Number 326, Class N-6, at Vancouver, Washington on August 29, 1940. Photo by Harold Hill.

SP&S 2-8-0 steam locomotive Number 326, Class N-6, at Vancouver, Washington in 1931. This locomotive was formerly Northern Pacific Number 1260 that was built by Schenectady Locomotive Works in ugust 1901. Photo by Herbert L. Arey.

SP&S 2-8-0 steam locomotive Number 326, Class N-6, at Portland, Oregon on June 7, 1941.

SP&S 2-8-0 steam locomotive Number 325, Class N-6, at Portland, Oregon. This locomotive was formerly Northern Pacific Number 1255 built by the Schenectady Locomotive Works in July 1901. Photo by Herbert L. Arey.

SP&S 2-8-0 steam locomotive Number 325, Class N-6, at Portland, Oregon. Photo by Herbert L. Arey.

SP&S 2-8-0 steam locomotive Number 325, Class N-6, at Portland, Oregon on May 30, 1937.

SP&S 2-8-0 steam locomotive Number 325, Class N-6, at Portland, Oregon in March 1940. Photo from the Harold Vollrath Collection.

SP&S 2-8-0 steam locomotive Number 315, Class N-5, at Portland, Oregon. This locomotive was formerly Northern Pacific Number 79 built by Baldwin Locomotive Works in October 1888. Photo from the Railroad Museum of Pennsylvania Collection.

SP&S 2-8-0 steam locomotive Number 315, Class N-5, at Portland, Oregon on April 13, 1931. Photo by Herbert L. Arey.

SP&S 2-8-0 steam locomotive Number 305, Class N-4, at Portland, Oregon on October 29, 1931. This locomotive was formerly Northern Pacific Number 74 built by Baldwin Locomotive Works in September 1888. Photo by Herbert L. Arey.

SP&S 2-8-0 steam locomotive Number 304, Class N-4, at Vancouver, Washington. Notice the green painted boiler and cylinder jacketing.

SP&S 2-8-0 steam locomotive Number 304, Class N-4, at the shops at Vancouver, Washington in November 1941. This locomotive was formerly Northern Pacific Number 72 built by Baldwin Locomotive Works in September 1888.

SP&S 2-8-0 steam locomotive Number 304, Class N-4, at Vancouver, Washington on November 15, 1942.