SP&S 0-6-0 steam locomotive Number 4, Class A-1, switching at 10th and Hoyt Street in Portland, Oregon in late 1917. Photo by Ben Griffiths.

SP&S 0-6-0 steam locomotive Number 4, Class A-1, at Portland, Oregon on August 25, 1947.

SP&S 0-6-0 steam locomotive Number 4, Class A-1, at Portland, Oregon on November 4, 1946.

SP&S 2-6-2 steam locomotive Number 450, Class F-1, with a passenger train next to the Oregon Trunk Railway enginehouse at Bend, Oregon circa. 1935. Photo by H.L. Arey

SP&S 2-6-2 steam locomotive Number 450, Class F-1, at the Hoyt Street Yard at Portland, Oregon.

SP&S 2-6-2 steam locomotive Number 450, Class F-1, at Vancouver, Washington in July 1930. This locomotive was formerly Great Northern Number 1555 and was built by Baldwin Locomotive Works in February 1907.

SP&S 2-6-2 steam locomotive Number 450, Class F-1, is boarded up and in storage at Vancouver, Washington on June 17, 1936.

SP&S 2-6-2 steam locomotive Number 450, Class F-1, at the shops at Vancouver, Washington.

SP&S 2-6-2 steam locomotive Number 451, Class F-1, at Portland, Oregon in June 1937. This locomotive was formerly Great Northern Number 1565 and was built by the Baldwin Locomotive Works in February 1907. Photo by Herbert L. Arey.

SP&S 2-6-2 steam locomotive Number 451, Class F-1, at an unknown location and date.