 Through his son Frederic, he was the grandfather of Frederic Bronson (1851–1900), who married Sarah Gracie King (1850–1931).She was the daughter of Archibald Gracie King (1821–1897) and Elizabeth Denning (née Duer) King (1821–1900), and the granddaughter of U.S. Representative James Gore King and William Alexander Duer.She was also the sister of May Denning King (1848–1925), who married John King Van Rensselaer (1847–1909), son of Henry Bell Van Rensselaer and grandson of Stephen Van Rensselaer III, the patroon of Rensselaerwyck.