Craig, Hal D., Risdon, Orange, 1786-1876, Shearer, Norville E. (1849). 07S 07E - Survey Map of Ida Township, Monroe County, page 7 [Michigan]. Department of Natural Resources. https://michigan.access.preservica.com/uncategorized/IO_1e366b55-23da-4636-b9de-1e9d468cce46 (map)