Margaret Osborne duPont (born Margaret Evelyn Osborne; 1918 – 2012). World No. 1 American female tennis player.
DuPont won a total of 37 singles, women's doubles, and mixed doubles
Grand Slam titles, which places her fourth on the all-time list despite
never entering the Australian Championships. She won 25 of her Grand
Slam titles at the U.S. Championships, which is an all-time record.
- "... San Francisco's chubby, red-haired Margaret ("Ozzie") Osborne
and blonde Louise Brough (rhymes with rough) of Beverly Hills." https://www.tennisforum.com/…/23435-serve-volley-40s-tennis…