A. & A. Burt, Brink, John (Surveyor), Burt, Alvin (1838). 25N 12W - Survey Map of Grant Township, Grand Traverse County [Michigan]. Department of Natural Resources. https://michigan.access.preservica.com/uncategorized/IO_ce30c985-f364-4a29-92f3-5730fc1eac1c (map)