William Breen Mary Nicholls

I am tracing (for a friend) his family tree.

All I know is that his great grand father William Breen was born in Hobart, Tasmania in 1848.

He married Mary Anne Nicholls in Hobart, Tasmania in 1876.

Her parents were convicts: James Nicholls and Margaret (nee Leary)

William and Mary had a son, Walter Leslie born in Hobart in 1881.

Walter married Violet Emily Knott in New Zealand in 1912.

I know most of the family details after that marriage, so I want to know about Walter's father, William.

All about William's parent's details.

Hope you can help, cheers Rick Silverwood.