Adair, George E., Burt, William Austin, 1792-1858 (1841). 44N 18W - Survey Map of Inwood Township, Schoolcraft County [Michigan]. Department of Natural Resources. https://michigan.access.preservica.com/uncategorized/IO_4eb68b44-7fbd-4705-a70d-d1f5b1ad32d6 (map)