William married Margaret Kelly Stewart in 1576. Margaret (daughter of James Stewart, of Schillinglaw, 6th of Traquhair and Katherine Kerr) was born in 1562 in Traquair, Peeblesshire, Scotland; died on 21 Dec 1625 in Manor, Peeblesshire, Scotland; was buried in 1625 in Church Yard of Manor, Scotland. [Group Sheet] [Family Chart]