Mcgillen Family History
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Mcgillen Name Meaning
Irish: probably an Anglicized form of Gaelic Mag Giolláin, a patronymic from giollán ‘little lad’; Woulfe, on the other hand, proposes an Anglicized form of Ó Gealáin meaning ‘bright’.
Source: Dictionary of American Family Names ©2013, Oxford University Press