Mann family, Henrico Co., Va, early 1700s

There was a Hatchett family living in Henrico/Chesterfield Co, Va. in the early 1700s. Family tradition says that John Hatchett had 3 daughters, Mary, Elizabeth and Hester, born between the years 1705-1715. Mary married a man by the name of Perdue and the other 2 daughters married a Mann and a Belcher.I don't know which.Does anyone have a mystery wife in their family tree they can't identify?Marriage would probably have taken place in the 1730s. Common male names in the Hatchett family are John, Thomas, William and Edward. Any help would be appreciated.Thanks