Margaret Osborne duPont

Margaret Osborne duPont, born Margaret Evelyn Osborne in 1918, was a world number one American tennis player who won 37 major titles across singles, women's doubles and mixed doubles, fourth on the all-time list, without ever entering the Australian Championships. Twenty-five of those titles came at the U.S. Championships, an all-time record there. She won six Grand Slam singles titles and saved match points in the 1946 French final against Pauline Betz and in the 1948 U.S. final against Louise Brough. With Brough she won 20 Grand Slam women's doubles titles, including nine consecutive U.S. titles from 1942 through 1950. She was ranked world number one from 1947 through 1950 and went undefeated in ten Wightman Cup competitions from 1938 to 1958, captaining the American team nine times. She was inducted into the International Tennis Hall of Fame in 1967 and died in El Paso, Texas, in 2012.