David Egmont Theile (born 17 January 1938 in Maryborough, Queensland), was an Australian backstroke swimmer of the 1950s and 1960s, who won consecutive gold medals in the 100 m backstroke at the 1956 and 1960 Summer Olympics, the only Australian to do so. He subsequently became a leading surgeon and medical administrator. Theile was born in Maryborough to Alice and Egmont Theile, who ran a husband and wife medical practice. Both had graduated from the University of Sydney, with his father originally being ...

Biography from Wikipedia