M&StL 2-8-2 No. 629 was a member of the railroad's second group of class M-1 Mikados delivered by ALCo's Brooks Works in 1921; after rebuilding in the late 1930s (see the previous page for No. 606) they were reclassified to M-46. They had 59-inch drivers, 200 p.s.i. of boiler pressure, and 25x30-inch cylinders. They produced 49,790 pounds of tractive effort and weighed 252,500 pounds. With a 55-square-foot grate area, they featured 2995 square feet of evaporative heating surface and 706 square feet of superheating surface. This image of No. 629, which was saved from a discontinued Internet site, was captured at an unspecified date and location by a photographer identified as Prescott. All M&StlL "Mikes" were retired by the end of 1951.