Hi - I have been tracing my family of Costigans and have managed to find the one who came over to England from Ireland but can't trace him before that. His name was Thomas Costigan and his marriage certificate says he was born in 1842 in Kilkenny and that his father was called John Costigan who was a labourer. Other than that I have hit a brick wall - I can't find any birth records or who his mother was or any siblings. Can any one help? thanks Lynn