My family was from the Ennis area, Danganille township. My GGGT grandfather was James Cullinan. One of his sons, Thomas Henry Cullinan married Catherine Hanrahan. One of their children (one of 12) was my grandfather, Daniel J. Cullinan born around 1852. He came to the USA around 1867.
He and a brother John went to Australia panning for gold in 1867. he retur\ed to the US but his brother stayed. He had another brother, Thomas Henry Cullinan, born 1858 who went to Australia, but I don't think he was searching for gold. His sister, Mary Anne, born 1844 died in Monkman, Gympie, Australia.