On 31 Jan 1765 when Jonathan was 55, he second married
Mary Underwood, daughter of
Aquilla Underwood (ca 1693-29 May 1767) &
Margaret Tuttle (24 Aug 1699-25 Aug 1780), in Sandisfield, Berkshire County, Massachusetts.
Born on 26 Mar 1724 in Westford, MA. Mary died in Windsor, Windsor County, Vermont, on 18 Jul 1818; she was 94.
Mary, also known as Polly.