Greetings! Your family tree has similar surname intermarriages as mine. We may be related. My ggg-grandmother was Hannora O'Melia, born ca 1835 in presumably Mayo. Her parents were supposed to be Peter O'Melia and Bridget Gibbons. She emigrated to North America, living in the Colton, NY area, where her brothers stayed. She met Daniel Routhier in that area and married him, moving to his homeland near Cornwall, Ontario. Her first-born son was Peter Alexander Routhier (Peter being her father's name; Alexander being the father's father's name). I would not be surprised if our families are connected.
Patrick
Seattle