LeSueur. J. Wetter also has made bricks here 8 years, averaging 100 thousand per year. His clay has a thickness of 5 feet, and is underlain by sand, the two forming a terrace about 100 feet above the river. (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)
Close northeast of Le Sueur, on the terrace of modified drift next below the Le Sueur prairie, J. Wetter has made bricks ten years, averaging 100,000 per year. His clay has a thickness of five feet, and is underlain by sand, the two forming a terrace about 110 feet above the river. The sand is mixed with the clay for tempering, in the proportion of one to three. The color of these bricks is deep red. (The Geological and Natural History Survey of Minnesota, Volume I, 1872-1882, N. H. Winchell and Warren Upham, Johnson, Smith & Harrison, Minneapolis, Minnesota, 1884, Page 647)