 Sarah, the widow of Frederic Bronson, was the daughter of Archibald Gracie King and Elizabeth Denning (née Duer) King, and the granddaughter of U.S. Representative James Gore King and William Alexander Duer.She was also the sister of May Denning King, who married John King Van Rensselaer, son of Henry Bell Van Rensselaer and grandson of Stephen Van Rensselaer III, the patroon of Rensselaerwyck.From her first marriage, Sarah was the mother of Elizabeth Duer Bronson, who was married to Lloyd Carpenter Griscom, the United States Ambassador to Italy, before her death in 1914.