It looks like Ann who married Ephraim Darling is probably the daughter of Asa Markham who went from Enfield, Conn. to New York and then last known in Augusta, Washtenaw County, Michigan. Ephraim and Ann are also in Augusta, Michigan in 1850 census. Ann's mother is most likely Abigail Root Markham first wife to Asa Markham. Abigail appears to have died in later 1790's.