Thelma Dorothy Coyne Long ( 14 October 1918 -- 13 April 2015 ) was an Australian tennis player and one of the female players who dominated Australian tennis from the mid-1930s to the 1950s .
Thelma Dorothy Coyne Long ( 14 October 1918 -- 13 April 2015 ) was an Australian tennis player . She was one of the female players who dominated Australian tennis from the mid-1930s to the 1950s .