Burt, William Austin, 1792-1858, Mullett, John, 1786-1862 (1840). 42N 07E - Survey Map of Drummond Island, Chippewa County, page 2 [Michigan]. Department of Natural Resources. https://michigan.access.preservica.com/uncategorized/IO_365cdfdb-d199-4213-a054-1c3f00d3387c (map)