I have always been confused about the reason that my oldest Healy uncle appeared on the U.S. Census for the first few times as "Eugene Healy."Then he became Owen Anthony Healy.His parents were Owen Healy and Anna Ford Healy, and he was the first child.The only thing I could figure out was that he was named Eugene, and when he became an adult changed his name. Absolutely the same person, no confusion.
I recently traveled to County Sligo, Ireland, where my grandfather Owen Healy was born. While there trying to find some information on him and his parents, the ladies working in the Sligo Genealogy Center just casually mentioned that I should be sure to check the names Eugene and John Healy, in addition to Owen Healy because the three names were interchangeable. So I guess that in Ireland at thattime (maybe still?) those names were similar to the way we might call a boy named John by the name Jack.I do not see the relationship ofthe names Owen, John, Eugene, but at least for me that solves the mystery of my Uncle Owen being called "Eugene" as a boy.Maybe this will help some other Healy researcher.