Cornelia Stuyvesant Vanderbilt ( the only child of George and Edith Vanderbilt ) married in 1924 to the British aristocrat John F. A. Cecil , a descendant of William Cecil . Cornelia Stuyvesant Vanderbilt ( George and Edith Vanderbilt 's only child ) married British aristocrat , John F. A. Cecil , a descendant of William Cecil in 1924 . John F. A. Cecil ( the only child of George and Cornelia Stuyvesant Vanderbilt ) married in 1924 to the British aristocrat William Cecil , a descendant of Edith Vanderbilt .