G'day Foolestroupe,

When Dad built the family home - in Greenacre (a fairly proletarian south-western suburb of Sydney) in the 1950s he used plasterboard ... as did Grandfather and uncle Fred, who built in the same cluster cooperatively. I don't know what the Housing Commission used in all the homes they subsequently built round us ... but I'm not familiar with Masonite as an indoor facing board.

Regard(les)s,

Bob Bolton