Mccusker Family History
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Mccusker Name Meaning
Northern Irish and Scottish: Anglicized form of Gaelic Mac Oscair, a patronymic from the Gaelic personal name Oscar ‘deer-lover’ or from a Gaelic form of the Old Norse personal name Ásgeirr, composed of the elements ans ‘god’ + geirr ‘spear’.
Source: Dictionary of American Family Names ©2013, Oxford University Press