A few weeks after returning from Shanghai, Astor became engaged to Eileen's close friend socialite Ellen Tuck "Tucky" French (1915–1974), the elder daughter of Francis Ormond "Frank" French II (1888–1962) and Eleanor Livingston Burrill (1891–1974).<ref name="Francis/Eleanor"></ref> They married on June 30, 1934, at Trinity Church in Newport, Rhode Island.