Engine 225 was purchased by the Duluth Missabe and Iron Range Railway Co. in June of 1941 and hauled over 44 million tons of iron ore from the Mesabi and Vermillion ranges. The engine and tender measured 127 feet 8 inches in length and stood over 16 feet tall. The locomotive weighed 695,000 pounds, and the tender, when loaded with 25,000 gallons of water and 26 tons of coal, weighed 436,635 pounds. By the time of its retirement in 1961, the 225 had traveled approximately 694,360 miles. The D.M.&I.R. Ry. Co. donated the 225 to the citizens of Proctor, and it was placed here through the efforts of the Proctor Development Council and its fund raising corporation, Proctor Shortline R.R., on August 8, 1963.