William bought land in Morgan County from the United States Government on 24 April 1820. He died before 27 October 1824, when his wife appeared in court to settle her husband's estate.
In his Will, dated 25 April 1821, he names his children, his present wife and makes pains to assure that all of his children receive equal shares from his estate, to the extent of itemizing loans and gifts to each child.
The inventory of William Hewlett's Estate lists, in part, 7 Slaves ( John, Abraham, Fulles, Nelson, Eliza, Mary,and Nelley), 3 Horses, 1 Pair of Oxen and Cart, Numerous Sheep and Hogs, 3 Beds, Walnut Cupboard, Chest and Desk, 2 Tables and 10 Chairs.