There is one O'BRIEN on this list. Carol Magee This isn't my line but I did find these. All I have is John Pierce circa b 1845 married Margaret Sparrow. They had William, b. 1850 Ireland m Margaret Slatterly - lived just outside Rochester James, b/. 1841 m Mary Ann Hickey - settled in Rochester, Minn John, m Mary Riley - lived just outside Rochester Matthew, b 1862 m Winnifred Degnan - Lived in England before going to Rochester. Katherine, (Katy) m John Emmett - settled in Rochester Mary, m William Kienast Ellen b 1865 Wexford m Wexford Danny O'BRIEN - settled in Rochester, Minn and Elizabeth went to England and was lost in the shuffle.