SP&S 2-8-0 steam locomotive Number 304, Class N-4, at Portland, Oregon in April 1932. Photo by Herbert L. Arey.

SP&S 2-8-0 steam locomotive Number 303, Class N-4, at Wishram, Washington on April 21, 1940. This locomotive was formerly Northern Pacific Number 71 built by Baldwin Locomotive Works in September 1888.

SP&S 2-8-0 steam locomotive Number 303, Class N-4, at unknown location and date.

SP&S 2-8-0 steam locomotive Number 303, Class N-4, at Lyle, Washington in 1941.

SP&S 2-8-0 steam locomotive Number 302, Class N-4, at Portland, Oregon on October 7, 1931. This locomotive was formerly Northern Pacific Number 69 built by Baldwin Locomotive Works in May 1891. Photo by Herbert L. Arey.

SP&S 2-8-0 steam locomotive Number 302, Class N-4, at Portland, Oregon on October 7, 1931. Photo by Herbert L. Arey.

SP&S 2-8-0 steam locomotive Number 302, Class N-4, at Portland, Oregon on June 30, 1938.

SP&S 2-8-0 steam locomotive Number 301, Class N-4, at Portland, Oregon in August 1931. This locomotive was formerly Northern Pacific Number 59 and was built by Baldwin Locomotive Works in November 1889.

SP&S 2-8-0 steam locomotive Number 301, Class N-4, at Portland, Oregon in April 1939. Photo by Herbert H. Arey.

SP&S 2-8-0 steam locomotive Number 301, Class N-4, at Portland, Oregon on April 11, 1938.