(April 24, 1876 – August 28, 1920) was an American businessman and a 10-goal polo handicap player.
Together with his brother Lawrence Waterbury, Harry Payne Whitney and Devereaux Milburn, known collectively as the "Big Four," he competed and won the 1909 International Polo Cup.
Original source: "The Pageant of America" Collection / v.15 - Annals of American sport / (unpublished photographs) / Polo. (Approx. 8,000 photographs) digital record