Heffernan Family History
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Heffernan Name Meaning
Irish: Anglicized form of Gaelic Ó hIfearnáin ‘descendant of Ifearnán’, a personal name from a diminutive of ifreannach ‘demon’ (from ifreann ‘hell’).
Source: Dictionary of American Family Names ©2013, Oxford University Press
Similar surnames: Hefferon, Heenan, Hefferman, Hefferan, Ferran, Hernan, Henderson