SP&S 2-8-2 steam locomotive Number 551, Class O-4, and five sister locomotives at Vancouver, Washington in March 1951. Photo by John Labbe.

SP&S 2-8-2 steam locomotive Number 551, Class O-4, at an unknown location and date.

SP&S 2-8-2 steam locomotive Number 551, Class O-4, taking on water at an unknown location and date.

SP&S 2-8-2 steam locomotive Number 550, Class O-4, at Vancouver, Washington on August 20, 1949. This locomotive was formerly Great Northern Number 3211 built by Baldwin Locomotive Works in October 1920. Photo by Wally Swanson.

SP&S 4-4-0 steam locomotive Number 55, Class L-5, at Seaside, Oregon, undated.

SP&S 4-4-0 steam locomotive Number 55, Class L-5, possibly in Portland, Oregon, undated.

SP&S 4-4-0 steam locomotive Number 55, Class L-5, at Portland, Oregon, undated.

Side view of SP&S 4-4-0 steam locomotive Number 55, Class L-5, at unknown location possibly in Portland, Oregon, undated.

SP&S 4-4-0 steam locomotive Number 55, Class L-5, at unknown location possibly Portland, Oregon, undated.

View of SP&S 4-4-0 steam locomotive Number 55, Class L-5, at unknown location on the Portland Division, 1923.