Great Northern Steam Locomotive Number 3102 with coal chute in background, Class O-1, at Superior, Wisconsin, 1947.

Great Northern Steam Locomotive Number 3103 at Superior, Wisconsin, 1949.

Great Northern Steam Locomotive Number 3105 at Kelly Lake, Minnesota, 1952.

Great Northern Steam Locomotive Number 3106 in front of coal chute, Class O-1, at Minneapolis, Minnesota, 1938.

Great Northern Steam Locomotive Number 3106, Class O-1, undated.

Great Northern Steam Locomotive Number 3108 at Hillyard, Washington, 1935.

Great Northern Steam Locomotive 3108, a Class O-1, a 2-8-2, built by Baldwin in 1916-1918, 28"x32" cylinders, 63" drivers, 210 psi steam pressure, 317,100 pounds weight, 75,380 pounds tractive effort with boosters, Hillyard, Washington. From the David Emerson Collection, a Maynard Rikerd photo taken in 1935.

Great Northern Steam Locomotive Number 3109 in front of water tank, Class O-1, at Superior, Wisconsin, 1947.

Great Northern Steam Locomotive Number 3110 at Kelly Lake, Minnesota, 1950.

Great Northern Steam Locomotive Number 3112 at Minot, North Dakota, 1952.