Brookfield, Noah, Mullett, James H., Mullett, John, 1786-1862 (1838). 15N 17W - Survey Map of Hart Township, Oceana County [Michigan]. Department of Natural Resources. https://michigan.access.preservica.com/uncategorized/IO_20c071e3-d91a-48d5-8aa9-5a9c83acf2db (map)