Will of Hezekiah Newton, s/o Joseph Newton and Elizabeth Morse, dated 21 Apr 1777, names "my Sister Lydia Rise" and subsequent siblings from his mother's marriage to Thomas Stow. "That he names Lydia first, would indicate she was the eldest of all. To be so she would have to be the daughter of his father, or of his mother by a previous marriage."
[Note: The will of Zerubbabel Rice makes it clear Lydia Rice is the widow of Abraham Howe, Jr. Lydia's baptism and her marriage to Abraham Howe in 1755 shows she must have predated her mother's marriage to Joseph Newton in Aug 1742, and the baptism shows she belongs to the mother, not the father.]