Irish: reduced Anglicized form of Gaelic Ó Gallchobhair
‘descendant of Gallchobhar’, a personal name from the elements
gall ‘strange’, ‘foreign’ + cabhair ‘help’,
‘support’.
Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4
1,156,969
Historical Documents & Family Trees with Gallagher
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The information for this chart came from the U.S. Immigration Collection at Ancestry.co.uk.
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You can find out when most of the Gallagher families immigrated
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