SP&S 4-6-6-4 steam locomotive Number 910, Class Z-8, with a freight train at Spokane, Washington, undated.

SP&S 4-6-6-4 steam locomotive Number 911, Class Z-6, with a westbound freight train at Marshall, Washington, May 17, 1953. Photo by Ron V. Nixon.

SP&S 4-6-2 steam locomotive Number 621, Class H-1, with the Portland roundhouse workforce after locomotive was rebuilt from SP&S 4-6-0 Number 107, December 2, 1927.

SP&S steam locomotive with passenger train near Tongue Point on its way to Astoria, Oregon, undated.

SP&S steam locomotive with passenger train near Tongue Point on its way to Astoria, Oregon, undated.

Color postcard view of SP&S steam locomotive with a passenger train at Tongue Point on its way to Astoria, Oregon, undated.

SP&S steam locomotive with passenger train near Tongue Point on its way to Astoria, Oregon, undated.

SP&S steam locomotive with a passenger train leaving Home Valley, undated.

SP&S steam locomotive with passenger train on the siding at Pyramid Rock, August 5, 1916.

SP&S steam locomotive with passenger train passing Pyramid Rock , August 5, 1916.