Who was the last Australian to win the US Open singles title in the twentieth century?

Evonne Goolagong-Cawley, 1977 [singles]
Last man to win was Mark Edmondsen, 1976

Alicia Molik was the last player to win doubles (2005)
Samantha Stosur and Scott Draper won the 'Mixed' the same year - 2005
Todd Woodbridge was the last to figure in the Men's doubles in 2001

- Deni, 2009