Three survey maps of the southeastern section of Moran Township, including Round Island and Green Island, in Mackinac County, Michigan, measured between 1840 and 1942.
Survey maps of several islands in Saginaw Bay near Fair Haven, McKinley, and Caseville Townships in Huron County, Michigan, measured between 1835 and 1853.
Survey maps of sections of Frankenlust Township and Portsmouth Township in Bay County and Zilwaukee Township in Saginaw County, Michigan, measured between 1823 and 1859.