Little Berry Sullivan is my Great Great Grandfather. I am the Great Grandson of Dr. E. N. F. Sullivan. His son Edward L. Sullivan was my Grandfather. My wife and I have the opportunity to travel to Ireland in June and I have been trying to trace back the Sullivans to Ireland. I have gotten back as far as Nathaniel Sullivan, father of Little Berry Sullivan but I have kind of gotten stuck there. Any help would be appreciated.