None of my OWENs emigrated to the States.
My father (Martin) says that:
my G-Grandfather (Owen, b. c1845) died in Ireland.
my G-Uncle (Owen, b. c1875) died in England.
Do you have any Mullarkey info to share? There's probably a connection farther back since all Mullarkeys seem to connect back to the Dunmore area.
Just an FYI: My fathers's parents, grandparents, and farther back all stayed in the Dunmore, Galway area.
Mary (Mullarkey) Wentzell