William was born about 1750, the son of James Magruder, Jr and Mary Bowie. The place is not known.
He has died but the date and place are unknown.
William Bowie Magruder (c1750-?)
James Magruder, Jr (1721-1773)
Mary Bowie (1732-?)
John Jr Bowie (1708-1753)
John Sr Bowie (c1688-1759)
Mary Mulikin (-1750)
Mary Beal (-1733)