Mccusker Family History
Mccusker Name Meaning
Irish (northern): Anglicized form of Gaelic Mac Oscair a patronymic from the Gaelic personal name Oscar ‘deer-lover’ from os ‘fawn’ and car ‘love’; 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 2nd edition, 2022