Horrigan
In County Cork, Ireland. Horrigan is a native surname, although many of its bearers went to America and Wales.
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Horrigan or Horigan is fairly rare, but related to Horgan which is numerous in Munster (Southern Ireland) ...It is especially found in Cork City and the Kerry/Limerick border. The name is derived from the Irish 'Ó h-Anradáin' which comes from 'anradh', "a warrior" ...
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