I've searched Ship Guilder's site and ancestry--all ports of arrival during that time frame with no results. Also checked an Irish site for ships leaving IR, nothing. I'm thinking there's no other places to look except maybe for arrivals in Canada. However, written in a book, it says Dominick arrived in the states with family when daughter, Mary C. was 4 yrs old. Mary was 15 in 1850, guessing 1839 arrival date. I guess they could have arrived in Canada first, then here, but thinking that unlikely because the author didn't mention Canada.