Burton, John W. (John Wear), 1915-2010, Merryweather, Algernon (1845). 40N 21W - Survey Map of Ensign Township, Delta County [Michigan]. Department of Natural Resources. https://michigan.access.preservica.com/uncategorized/IO_9d4769e5-67f7-4d0b-8646-7decd451b0d8 (map)