Hassett and Hawley ancestors

Hello,

I am looking for Hassett and Hawley ancestors from, I believe, Toomevara, Tipperary. Edward Hassett was born around 1800 and married Catherine or Kate Hawley /Hawly. This is the information on son John's [b 1828 Toomevara d 1878 - Victoria, Australia] marriage and death certificates. John was sentenced to transportation to Australia. I can't find any birth records for him. 

There is a record for a Thomas Hassett, son of Edward and Kate. There are apparently other siblings [thanks to their descendants providing info] but no official documentation or paper trail is found. 

John married Mary Drew here in Australia - her certificates say she was born in Tipperary [no other information] and her father is supposed to be Patrick Drew of Patrickswell - I don't think that's in Tipperary?? He married Mary Moroney of Tipperary so perhaps that was the move there. 

This is our brick wall so I really hope that there is a snippet of Hassett info out there somewhere. 

Cheers,

Mary 

Australia