The David Sturgis and Myriam Sturgis in your cemetery list are two of the children of Joseph Sturges (1740? - 1828) and Eunice LNU. The other Sturges/Sturgis burials you recorded are most likely the children and grandchildren of David and Myriam's siblings.
I believe that Joseph and Eunice had either nine or 10 children. At least two and possibly three of their daughters moved with their families to SE Michigan in the 1830s.