Hi Claire

It appears Michael James Barry served during WW2 - this is from the OzBurials site for Dalwallinu:

BARRY , M. J. WX2320 Pte 2/11 Inf Btn. 16 Sep 1948 aged 42

I found a divorce for a Michael and Hazel Barry in 1944. Search "trove" for the newspaper article on the divorce.

I found a marriage for a Hazel M Barry to Robert A Hicks in 1946.

From the electoral rolls, there was a Hazel Maude Hicks who lived alone in South Fremantle in 1949 - her occupation listed as cook, she then moved to Busselton in the south west as a cook in 1958. By 1968 she was living in Medina, near Perth. She was still there alone in the 1980 electoral roll.

There was a marriage in Fremantle in 1955 between Margaret Ann Barry and Raymond Turner Williams.

I can't find anything else on Kevin or Margaret, I'm sorry.