Hernon Family History
Hernon Surname Meaning
Irish (Galway and Offaly): Anglicized form of Gaelic Ó hIarnáin Ó hEarnáin ‘descendant of Iarnán or Earnán’ a personal name possibly from iarn ‘iron’.
Shortened form of Heffernan.
Source: Dictionary of American Family Names 2nd edition, 2022
