Descendants of Henry and Frances Murphy Married IN Sydney IN 1933

I am trying to trace any descendants of Henry E Murphy, and his wife Frances Maud (maiden name Cleary). They married in Ashfield, Sydney in 1933. Frances died in 1962, and Henry in 1955.
Frances had a sister Gwendoline Constance Cleary; I think she was born around 1906. She married a Wilfred N Cobcroft in Auburn in 1930.

I'd appreciate any help.

Vince