David Lyon was the son of David Lyon and Elizabeth _____. He was born between November 23, 1719 and November 22, 1720, and died on November 22, 1764. His gravestone lists his age as 44. His will was dated October 23, 1764, and was proved on December 4, 1764.
David married first Abigail _____ who died on July 26, 1745. They had one daughter:

Eunice (abt 1745 - aft 1781) m. Jonathan Wakelee

David Lyon married Martha Hurlbut on June 12, 1745/6 in Westport, Fairfield County, Connecticut. They had the following children, all baptized in Westport, Fairfield County, Connecticut:

Sarah (4 Jul 1747 - 16 Jun 1812) m. Joseph Bennett
Lydia (12 Jun 1749 - ) m. 6 Sep 1770, John Scribner
Martha (3 Aug 1751 - 10 Aug 1882) m. 21 Jan 1770, Ebenezer Gorham
David (23 Feb 1754 - 9 Feb 1778) m. Hannah _____
Elizabeth (9 Sep 1756 - 14 Sep 1757)
Betty (bef 19 Nov 1758 - aft 1837) m. 11 Mar 1779, Matthew Hanford
Rebecca (bef 28 Dec 1760 - 16 Dec 1842) m. 19 Nov 1778, Samuel Wood

David Lyon, the son of David and Martha, was captured during the revolution and died in prison. His sons, David and Joseph, were placed under guardianship of Joseph Bennett.

In his will dated October 23, 1764, David Lyon names his eldest daughter Eunice Lyon from his first marriage, his son David, who is under 21, daughters Sarah, Lydia, Martha, Betty and Rebecca, his present wife Martha, Exec’x.
On May 12, 1769, an agreement was signed naming Sarah Bennit (wife of Joseph), Lydia Lyon and Martha Lyon, as heirs of David Lyon.