O'Neill, had more success in the mixed doubles, twice winning the title (in 1960 with Trevor Fancutt and 1961 with Bob Hewitt).
In 1960 Fancutt, partnering Jan Lehane, won the mixed doubles title of the Australian Championships, defeating Christine Truman and Martin Mulligan in straight sets.
Trevor Nunn | Trevor Howard | Trevor Horn | Trevor | Trevor Chappell | Trevor, Wisconsin | Trevor Griffiths | Trevor Brown | Trevor Metcalfe | Trevor McDonald | Trevor Francis | Trevor Baylis | Trevor Watts | Trevor Brooking | Trevor Ariza | Hugh Trevor-Roper | Trevor Sykes | Trevor Swan | Trevor Paglen | Trevor Noah | Trevor Nelson | Trevor the Traction Engine | Trevor Peters | Trevor N. Dupuy | Trevor Kavanagh | Trevor Jones | Trevor Huddleston | Trevor Guthrie | Trevor Graham | Trevor Bauer |