I am trying to find where in Ireland, my great great grandfather - Bernard Boyle - came from. He was born about 1810 and eventually married Ann who was born in 1823. I'm not sure if they married in Ireland or America. I think they came to live in Philadelphia PA prior to 1847 because they apparently had a daughter named Mary in that year in PA. I would guess they emigrated somewhere between 1843 and 1847.