Mary was a neighbor and friend of Nelly Custis, a daughter of Martha Washington.
As a girl of fourteen, Mary Cox was one who strew flowers before General Washington at the reception given him by the people of New Jersey at Trenton Bridge, just before he was made President, 29 April 1789.
She was appointed vice regent for South Carolina of the Mount Vernon Association in April 1860. Mary
was born at Trenton, Mercer Co., New Jersey
, on 22 March 1775. She was the daughter of Colonel John Cox
and Ester Bowes
. She married James Chesnut
at Philadelphia, Philadelphia Co., Pennsylvania
, on 20 September 1796. James and Mary met while James was a student at Princeton.
On their bridal journey from Philadelphia to Camden they drove a cream colored coach with four horses and out riders.. Mary died on 13 March 1864 at Bloomsbury, Camden, Kershaw Co., South Carolina
, at age 88. Her body was interred in March 1864 at Camden, Kershaw Co., South Carolina
, at Knight's Hill Cemetery.