My husband's 3 x g.grandparents and 2 sons came over to Liverpool from Dublin sometime before the 1841 census, but like daisynook, it's impossible to find anything out about him. His first wife died and he re-married in 1857, from that we know his father's name, and he married under the rites of the Roman Catholic Church, but that's as far as we can get.
Lizzie