Isaac Newton, s/o Daniel Newton and Susanna Morse, b. Marlborough 12 Mar 1686, d. Southborough 11 Feb 1754, m. Boston 20 Mar 1716 Sarah Belknap. Will of Isaac Newton Sr. "of Southborough, husbandman", dated 13 Jun 1751, proved 15 May 1754, mentions wife Sarah; children Hezekiah ["eldest son"], Seth [executor], Isaac, Simeon ["fourth son"], Keziah ["eldest daughter"], Mary Graves, Martha Gibbs.