Union Pacific Railroad steam locomotive number 3977 at Seattle, Washington, circa 1947. UP 3977, a 4-6-6-4, with the Portland train at Seattle circa 1947. Photo by Blackie Moser, J.M. Fredrickson collection. Other Subject Classes: steam locomotive.

Union Pacific Railroad steam locomotive number 3975 at Tacoma, Washington, in 1947. UP 3975 a Tacoma Union Station in 1947. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive.

Union Pacific Railroad steam locomotive number 3975 at Tacoma, Washington, in 1947. UP 3975 at Tacoma Union Station with passenger train No. 457 in 1947. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive.

Union Pacific Railroad steam locomotive number 3975 at Tacoma, Washington, in 1947. UP 3975 at Tacoma Union Station with passenger train No. 457 in 1947. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive.

Union Pacific Railroad steam locomotive number 3975 at Tacoma, Washington, in 1947. UP 3975 a Tacoma Union Station in 1947. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive.

Union Pacific Railroad steam locomotive number 3225 at Tacoma, Washington on December 13, 1935. UP 3225 with a passenger train at Tacoma in 1935. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, passenger train.

Union Pacific Railroad steam locomotive number 3225 at Tacoma, Washington on December 12, 1935. UP 3225 with a passenger train at Tacoma in 1935. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, passenger train.

Union Pacific Railroad steam locomotive number 3224 at Bonneville, Oregon on June 18, 1939. UP 3224 with a passenger special on a Bonneville Dam Trip in 1939. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, passenger train.

Union Pacific Railroad steam locomotive number 3223 at Union Station in Tacoma, Washington on November 12, 1935. UP 3223 with passenger train at Tacoma in 1935. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, passenger train.