John O'Mahony (ōmă´hənē), 1816–77, Irish patriot. He attended Trinity College, Dublin, and became a proficient Irish scholar. After taking part in the unsuccessful Young Ireland rebellion of 1848, he fled to France and from there to the United States, where he was a founder and organizer of the Fenian movement.
"O'Mahony, John." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (November 15, 2018). https://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/omahony-john
"O'Mahony, John." The Columbia Encyclopedia, 6th ed.. . Retrieved November 15, 2018 from Encyclopedia.com: https://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/omahony-john