John Barnes Harry

Hello
I only started on Geni yesterday and am finding out how it all works.
Mr ggg grandfather was John Barnes Harry and he was born in Cornwall circa 1833, he came to Australia during the gold rush times and went to 'Beaufort' Victoria a town in the goldfields area. His wife was Mary Burrell Ivey also from Cornwall. His daughter Jane Barnes Harry was of course my gg grandmother and she was born in Fiery Creek Beaufort in 1855 and she married a Charles Smart. I am looking for information regarding John Barnes Harry's parents and siblings, where they lived etc.
If anyone could help it would be very much appreciated.