Great Northern Steam Locomotive Number 4001 locomotive, Class Z-6, at Spokane, Washington, undated.

Great Northern Steam Locomotive Number 521 at Spokane, Washington, 1946.

Great Northern Steam Locomotive 607, a Class G-1, Mastodon 4-8-0, Spokane, Washington. A David Emerson photo taken in 1930.

Great Northern Steam Locomotive Number 785 at Spokane, Washington, 1946.

Great Northern Steam Locomotive Number 820 at Spokane, Washington, 1938.

Great Northern Steam Locomotive Number 820 at Spokane, Washington, 1946.

Great Northern Steam Locomotive Number 838 at Spokane, Washington, 1949.

Great Northern Steam Locomotive Number 840 at Spokane, Washington, 1947.

Great Northern Steam Locomotive Number 879 at Spokane, Washington, 1938.

Great Northern Steam Locomotive Number 879 at Spokane, Washington, 1947.