Keohan households in mid-nineteenth century Ireland

Householders by county in (1847-64), as on the map

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Surname Dictionary

Keogan Quite numerous: Meath-Cavan etc. Ir. Mac Eochagáin (SI); Ó Ceogáin (SGA) so that it may sometimes be a variant Cogan. Woulfe says it is a variant of Mag Eochagáin, i.e. Geoghegan, q.v.
Keoghan Quite numerous: Waterford-Kilkenny, Midlands. Ir. Mac Eochagáin, dimin. of Eochaidh. Cognate with Keogan and Keohane.
Keohan rare: Waterford. Ir. Mac Eocháin, see Keohane.
Keohane numerous: mainly Cork. Ir. Mac Eocháin, dimin. of Eocha, a variant of Eochaidh, but in spoken language Ó Ceocháin. SI & SGG.
Ó Ceocháin Keohane: líonmhar: Corcaigh thiar: claochlú ar Mac Eocháin, q.v.

Variants in Griffith's
& total households

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Non-Griffith's Variants

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