Olmsted County. Brick are made at many places in the county. …Pleasant Grove… furnish brick. (The Geological and Natural History Survey of Minnesota, The Fourth Annual Report, For The Year 1875, N. H. Winchell & M. W. Harrington, The Pioneer-Press Company, St. Paul, 1876, Page 95)

Tilton R…Pleasant Grove (Minnesota State Gazetteer and Business Directory including Dakota Territory 1880-81, Volume II, R. L. Polk & Co. and A. C. Danser, St. Paul and Detroit, Page 978)