Looking for John Harrison of Scotland Who Emigrated to Au

I'm looking for any information on John Harrison, probably born around 1914 in Scotland. He emigrated to AustrailA, probalby around 1930's or so, as an adult. I don't know if he married there or before going there. I don't know if he had family or not. He is my grandfather's brother. Any information would be gratefully received.
Thanks.
CAL