McGrath/Nugent Cappoquin

I am looking for links to my great-grandparents John McGrath & Margaret McGrath (née Nugent) who lived in 71 Barracks street Cappoquin. Their daughter Margaret was born there on 25 May 1862 & I think there was another daughter Ellen born in 1863. My Grandmother Margaret (Maggie) came to Australia in 1881 married William Menzie Gibbs in 1885 & they had 9 children. They lived in Charleville, Queensland Australia. I know that Minnie Curran a relative (sister or niece) of my Grandmother went to Montreal, Quebec, Canada. My great-grandfather John McGrath was a lime burner & it was always said that “he rang the bell” but it was never explained whether it was in the town for some reason, at the church, or at the place where he worked. If anyone has any link or connection I would be so grateful. Marie Stewart. PS.  I have a beautiful photograph of Margaret McGrath/Nugent which she sent to her daughter (my grandmother) in Australia. It must have been taken in a photographic studio in Waterford in the early 1900’s.