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The mcmahon Surname

mcmahon Name Meaning and History

Irish: Anglicized form of Gaelic Mac Mathghamhna, a patronymic from the byname Mathghamhain meaning ‘good calf’. This was the name of two (unrelated) chieftain families in counties Clare and Monaghan. In northern Ireland it is sometimes Anglicized as Matthews, since Matha was the Irish form of the Biblical name.

Dictionary of American Family Names, Oxford University Press, ISBN 0-19-508137-4
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mcmahon Family Facts

Distribution of mcmahon Families in the US in 1920
Number of mcmahon families
 471-940
 158-470		 1-157
 0
Compiled by Ancestry.com.au from the 1920 US Federal Census records

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The information for this map came from Ancestry.com.au’s US Federal Census Collection.
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