Spokane, Portland, and Seattle Railway Steam Locomotive 911, Class Z8 in Hillyard, Washington, undated. Photograph by Wade Stevenson.

Spokane, Portland, and Seattle Railway Steam Locomotive 911, Class , undated. Photograph by Wade Stevenson.

Spokane, Portland, and Seattle Railway Steam Locomotive at Hillyard, Washington, undated. Photograph by Wade Stevenson.

SP&S depot at Goble, Oregon with 4-4-0 steam locomotive Number 54, Class L-4, in charge of a passenger train, undated.

SP&S gas electric motor car Number 1101 and 4-6-0 steam locomotive Number 103, Class D-1, at the Hoyt Street Roundhouse turntable, September 25, 1921, from the J.F. Adams Collection.

SP&S diesel locomotive Number 22, an American Locomotive Company (ALCO) S-2, waits as 4-6-6-4 steam locomotive Number 910, Class Z-8, brings in a westbound freight at Wishram, Washington, undated. Photo by J. Mills.

SP&S 4-8-4 steam locomotive Number 702, Class E-1, and diesel locomotive Number 856, an American Locomotive Company (ALCO) FA-1 at east end of the enginehouse at Wishram, Washington, undated. Photo by J. Mills.

SP&S 4-6-6-4 steam locomotive Number 903, Class Z-6, and diesel locomotive Number 26, an American Locomotive Company (ALCO) S-2, on a snowy day in the yard at Wishram, Washington, undated. Photo by J. Mills.

SP&S passenger Train with 4-4-2 steam locomotive Number 605, Class C-1, with the Astoria Local departing Union Station, August 24, 1947.

SP&S back shop forces at SP&S shops at Vancouver, Washington in front of SP&S 2-6-2 steam locomotive Number 465, Class F-1 , December 16, 1927.