3 miles south-west of Alexandria, in sec. 2, Lake Mary township, by Mark Bundy, 75 M. yearly; (The Geological and Natural History Survey of Minnesota, The Eighth Annual Report for the Year 1879, Submitted to the President of the University, Feb. 18, 1880, The Pioneer Press Company, St. Paul, MN, 1880, Page 120)
Page 496. Bricks. In section 2, Lake Mary, some three miles southwest from Alexandria, bricks were made by Mark Bundy from 1866 to 1880, producing about 75,000 yearly. Next below the soil is yellowish brown clay, 3 feet, making red bricks;
Page 497. then, darker and bluish clay, more sandy, less sticky and plastic, 4 feet, making cream-colored bricks; succeeded below by bluish till, 8 feet and extending deeper. By mixing the upper and lower portions of this clay it is rightly tempered, with additional sand. (A Report on the Geological and Natural History Survey of Minnesota, 1882-1885, The Geology of Minnesota, Volume II, N. H. Winchell and Warren Upham, Pioneer Press Company, St. Paul, Minnesota, 1888)