 Mullett and Cathcart laid out many of the townships in the new county including Charlevoix Township.The county was originally organized in 1840 as Kesk-kauko in honor of a great chief of the Saginaw tribe, and name was changed from Resh-kanko to Charlevoix County in 1843.The county was named in 1843 for Pierre François Xavier de Charlevoix, a Jesuit missionary of the French colonial era.