Ó hAilleagáin

Rev Patrick Woulfe
1923

Ó hAILLEAGÁIN—IO Hallegane, O Hallagan, Halligan, Hilligan; 'descendant of Ailleagán' (diminutive of Áille, handsome, beautiful); also Ó hAllagáin; an old Ulster surname; now common also in Mayo and Roscommon.

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