Great Northern Steam Locomotive 1722, a Class H-6, a 4-6-2, rebuilt by Great Northern Shops from 1525 Class J-1 2-6-2, 23-1/2"x 30" cylinders, 69" drivers, 210 psi steam pressure, 249,500 pounds weight, 40,820 pounds tractive effort, Hillyard, Washington. From the David Emerson Collection, a Maynard Rikerd photo taken in 1935.

Great Northern Steam Locomotive Number 1722 at Hillyard, Washington, 1935.

Great Northern Steam Locomotive Number 1724 at Hillyard, Washington, 1935.

Great Northern Steam Locomotive 1951, Class M1 in Hillyard, Washington, undated. Photograph by Wade Stevenson.

Great Northern Steam Locomotive 1951, Class M1 dismantled in the backshop at Hillyard, Washington, undated. Photograph by Wade Stevenson.

Great Northern Steam Locomotive 1951, Class M1 in Hillyard, Washington, undated. Photograph by Wade Stevenson.

Great Northern Steam Locomotive 1951, Class M1 in Hillyard, Washington, undated. Photograph by Wade Stevenson.

Great Northern Steam Locomotive 1951, Class M1 dismantled in the backshop at Hillyard, Washington, undated. Photograph by Wade Stevenson.

Great Northern Steam Locomotive 1951, Class M1 dismantled in the backshop at Hillyard, Washington, undated. Photograph by Wade Stevenson.

Great Northern Steam Locomotive 1951, Class M1 in Hillyard, Washington, undated. Photograph by Wade Stevenson.