I just came back from Ireland.What I found out was alot of McCarthy's came from Limerick and Cork.My family came from Ireland but I can't find out which part.My grandmother was name Annie Neville and she came to America around the 1900's my grandfather came to America shortly after.My grandfather's name was Thomas McCarthy. My grandmother and grandfather was married in Salem, Mass. 12-26-1913.I have been looking for about 6mos.now. It is very hard to find out any information with out knowing which part of Ireland they came from. On my father's birth certificate just says Ireland.On my grandparents marriage certificate it just says Ireland. I wish you alot of luck on your search. I have even checked Ellis Island to try and find out when they came over.