William Johnston was born 19 December 1697 in Annandale, Scotland, United Kingdom to Edward Johnston (1649-1704) and Elizabeth Walker (1680-1725) and died 1778 Port Royal, Caroline County, Virginia, United States of unspecified causes. He married Ann Chew (1703-1742) 1 October 1723 in Spotsylvania County, Virginia, United States.
|Offspring of William Johnston and Ann Chew (1703-1742)|
|Nancy Ann Johnson (c1724-?)||1724 Spotsylvania County, Virginia (Spotsylvania County, Virginia)||1788 Orange County, Virginia, United States of America||Philip Ballard (c1722-1778)|
|Larkin Johnston (1727-1816)|