He married Tamar Hodgson . Tamar Hodgson was born at of Alston, Cumberland, England Abt 1713 .
They were the parents of 12
children:
Jane Cowper
christened 9 Oct 1732.
Tamar Cowper
christened 27 Jun 1733.
Isaac Cowper
christened 10 Sep 1733.
George Cowper
christened 13 Oct 1733.
Joseph Cowper
christened 26 Oct 1735.
Elizabeth Cowper
christened 4 Aug 1737.
Ann Cowper
christened 22 Jan 1738.
Mary Cowper
christened 25 Aug 1740.
John Cowper
christened 3 Oct 1743.
Jonah Cowper
christened 26 Nov 1744.
Thomas Cowper
christened 12 Mar 1746.
Hannah Cowper
christened 22 Jan 1748.