My Tierney ancestors came from Nenagh, Tipperary, Ireland also. My great-great grandfather was John Tierney of Nenagh married to Ann Caplice born around 1800. Their children were Jeremiah, James (my great-grandfather born around 1837), Thomas, Bridget, and Mary. All but Mary lived mostly in Minnesota. Mary lived in Stanton Island New york and was married to a man named "Hogan".