Researching Fitzgerald and Brady from Ireland

Hi everyone
I am trying to research the Fitzgerald family of George Street, Limerick, Ireland as they are my g.g.g. grandparents. I do know that Windham McGrath Fitzgerald married Deborah Hely and they had 6 children before he died in Limerick on the 24 Oct 1857. That unfortunately is the only date I have for either of them.
Their daughter Anne married Luke Brady but nothing exciting seems to have happened to them; they lived in Brookeville, Ennis and produced 7 children.
Mary Brady was their 3rd daughter and she went on to marry William Lewis Hunt of 83 George Street, Limerick. The Hunt family is very well documented, thanks to a cousin of mine. It was Mary’s son William George Hunt that came out to South Africa and here we still are.
Thanks for reading this.
Mel