#4 Coral Buttsworth
Coral Buttsworth was a prominent tennis player from Australia in the Pre- World War II era. She only took part in the Australian Open and did not record a single appearance in any other Grand Slam. She won the title in 1931 and successfully defended her title the following year. She was 32 years, 231 days old at the time.
#3 Nancye Wynne Bolton
Australian Nancye Wynne Bolton won a then-record 6 Australian Open titles. Her record was later eclipsed by Margaret Court and Serena Williams. Her total Grand Slam tally at the Australian Open is 20 including 10 Doubles titles and 4 Mixed Doubles titles. She was inducted into the International Tennis Hall of Fame in 2006. Her last Australian Open Singles title came in 1951, 14 years after her first title. She was 34 years, 59 days old at the time.
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