McDuffy households in mid-nineteenth century Ireland
Household numbers by county in Griffith's (1847-64), as on the map
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Surname Dictionary
| Duffy | Very numerous: Leinster, Ulster, Connacht - it takes the form Duhig in Munster and Dooey in Ulster. Ir. Ó Dubhthaigh, mod. Dufaigh. Perhaps dubhach = gloomy. IF & SGG. |
| O'Duffy | Quite numerous: Dublin etc. Ir. Ó Dubhthaigh (the dark one). See Duffy. |
The surname
Parishes where McDuffy and a second surname are found together
Variants in Griffith's
& total households
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Non-Griffith's Variants
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