On 19 Feb 1734 when David was 21, he married Deborah Clap (44793) , daughter of David Clap (25450) (Nov 1684-) & Deborah Otis (28565) (24 Apr 1694-), in First Parish Church of Scituate.110 Born on 2 Dec 1714 in Scituate, MA.52 Deborah died in Scituate, MA in 1792.188 Buried in Fairview Cemetery, Scituate Center.

On 6 Jun 1738 when Elizabeth was 19, she married Dea. Joseph Otis (28573) , son of Hon. Joseph Otis (12022) (1665-11 Jun 1754) & Dorothy Thomas (27260) (6 Nov 1670-10 Jan 1755), in First Parish Church of Scituate.52,110 Born on 1 Oct 1712 in Scituate, MA.52 At the age of 1, Joseph was baptized in First Parish Church of Scituate, on 13 Jun 1714.52 Joseph died in Richmond, MA ca 1793.168

Joseph was of New London when he married Elizabeth.52

From A Memoir of the Otis Family:168
    Joseph moved to Richmond, MA. It has also been reported that afterwards Whitestown, N.Y. was his home, where he likewise died about 1793, but as there is (at least at present) no town by this name in N.Y. state, this statement is open to question.
    He was noted for going to sleep in his wagon and other places. He sometimes fell asleep while smoking; so often breaking his pipe in this way that he procured one made of iron. It was told of him by Dr. Watson of Colchester that when at church one Sunday, the sermon happening to be longer than usual, he took out a doughnut, and while in the act of biting it, fell asleep. His head fell back with the cake protruding from his mouth, and he was an object of great merriment.

On 13 Nov 1740 when Mary was 19, she married Benjamin Cudworth (47520) , son of Nathaniel Cudworth (29350) (7 Sep 1667-ca 1730) & Sarah Joy (14 Apr 1681-), in First Parish Church of Scituate.110,52 Born ca 1716 in Scituate, MA. Benjamin was baptized in First Parish Church of Scituate, on 13 May 1716.52 Benjamin died aft 1781.

On 2 Feb 1740 when Mercy was 15, she married Joseph Otis (26757) , son of Capt. Stephen Otis (12020) (1661-26 Aug 1733) & Hannah Ensign (10705) (ca 1670-1 May 1729), in First Parish Church of Scituate.110,52 Born 16 Mar 1709/10 in Scituate, MA.52 Joseph died in Scituate, MA on 11 Sep 1788.52 Buried in Union Street Cemetery, Scituate.

Joseph and Mercy lived at the ‘Two Stacks’ with her brother Barnabas.42

From William A. Otis’s Memoir of the Otis Family:168
    Joseph was representative from Boston, and keeper of the jail; also mariner, and sheriff of Suffolk Co. After his death, his widow married Rev. John Hancock, the father of the governor.
    Joseph and his descendants occupied for many years the old house, built about 1700, known as ‘The Old Two-Stacks’. This house, however, was not built by Joseph, but by his wife’s family, the Littles.