Looking for Anything About James Maher and His Wife Margaret Nee Barry Before They Came to Australia Around 1857

James father was Thomas maher his mother was Honora nee Brien
Margarets father was David Barry and Mother was Joanna O'Brady

James and Margarets death Certificates say they were married in Tipperary (don't know when)
they had 9 children here in Victoria.

My mothers maiden name is Maher and she comes from this family tree.

would be very grateful if someone out there could give me some answers to the Irish side

Regards

Gold..