Great Northern Steam Locomotive Number 3369 at Klamath Falls, Oregon, 1939.

Great Northern Steam Locomotive Number 3370 with frieght train, Class O-6, at Minneapolis, Minnesota, 1946.

Great Northern Steam Locomotive 3356, a Class O-6, a 2-8-2, rebuilt by Great Northern in 1926 from Mallet Number 1921, 28"x32" cylinders, 63" drivers, 200 psi steam pressure, 320,100 pounds weight, 67,700 pounds tractive effort, last of Class O-6, Hillyard, Washington. A David Emerson photo taken in 1934 or 1935.

Great Northern Steam Locomotive Number 3371 at Hillyard, Washington, 1935.

Great Northern Steam Locomotive Number 3371 at Hillyard, Washington, 1935.

Great Northern Steam Locomotive 3371, a Class O-6 2-8-2, rebuilt by Great Northern Shops in December 21, 1926 from L-1 Number 1921, scrapped April 15, 1947, at an unknown location. A David Emerson photo, undated.

Great Northern Steam Locomotive Number 3375 at Minneapolis, Minnesota, 1947.

Great Northern Steam Locomotive Number 3375 at Minneapolis, Minnesota, 1955.

Great Northern steam locomotive 3375, undated. Class O-8. Norm Priebe Collection. Black & white negative, 2 7/8 inch x 4 3/4 inch. Other Subject classes: Steam locomotive

Great Northern Steam Locomotive Number 3375, Class O-8, undated.