 She was the daughter of lawyer, financier and philanthropist John Teele Pratt and Ruth Baker Pratt, the first U.S. Congresswoman from New York State.Her brother, Edwin H. Baker Pratt, was the headmaster of Buckingham Browne & Nichols, and her sister, Phyllis Pratt, was married to Paul Nitze, the Secretary of the Nave and Deputy Secretary of Defense under President Lyndon B. Johnson.Together, they were the parents of three children