I've done much research my great grandmother and great grandfather moved from Co. Tipperary but im not sure what parish. I do have First and last names and dates of both they also I have my great grandmother's maiden name as she married him after arriving to NYC. I'm sure with enough digging i can find more details if needed. I know I didn't add names and dates I will add them just don't know where to turn.
Nick:
Add the details of your great-grandparents as a comment and our volunteers will try to assist you.
Roger McDonnell