My Mannix family came in the late 1860's to Boston and settled in different areas of the state. I do not know much more about other relatives. The first Mannix that came did not have any parents listed on his death record so I can't trace him. His wife's maiden name was Touhey, Toohey. The family may have been from Tomgraney as there were many Toohey's and Mannix families living there. Sorry I can't give you anymore than that. Good luck.