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Kilcullen Family History

Recorded in a variety of spellings including Kilgallen, Kilgallon and Kilcullen, this is an Irish surname. Formerly prefixed with the Gaelic 'Mac' meaning 'son of', the surname is now only found in its shortened form. It originates from the pre 10th century 'Mac Giolla Chaillin' which translates as 'the follower of St Cailin', a popular figure in the country from the early days of Christianity. The surname as Kilgallen and Kilgallon is most often recorded in County Sligo, although across the county border into Mayo, the spelling is more usually Kilcullen.

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