He married Jane Chisnal . Jane Chisnal was born at Eccleston, Lancashire, England 1696 .
They were the parents of 7
children:
John Foster
christened 5 Jan 1717.
Ellen Foster
christened 15 Feb 1718.
James Foster
christened 19 Jun 1720.
Margaret Foster
born 1721.
Elizabeth Foster
christened 17 Mar 1723.
Richard Foster
christened 10 Aug 1724.
Ann Foster
christened 3 Feb 1726.