I can't add to William Henry's tree so here is some info I have uncovered.

William Henry's parents were John Henry & Elizabeth De Vinne daughter of Hugh & Mary (Jenkins) De Vinne. John died in 1747 leaving Mary a widow of 8 children: William, Robert, Hugh, Mary Anne (Married John Postlewaite), Mary (Married Bickham) , James, Martha (Married Carson), and John (Married Elizabeth Russell). John Henry who married Elizabeth was the oldest son to Robert and Mary Anne. John had two brothers James and Robert. John's brother Robert married Sarah Davis and James married Mary Anne Davis. Sarah and Mary were sisters.