Padraig Mac Giolla-Domhnaigh

Carlton—This name in Ulster and Scotland is the anglicised form of M'Kerrill, a Galloway sept descended from an Irish Chief called O'Carroll, who obtained lands in Carrick, Ayrshire. The descendants of this O'Carroll own lands in Wigtonshire, Cruggleston Castle being owned by them. The name is also anglicised Carolton, McCarloe, McCarlie, Kerly, McKerlie, and McKerrill (Mac Cearbhaill). Several of the name passed over to Ulster within the 17th and 18th centuries.

Alphabetical Index of Anglicised Surnames in Ireland

See also Woulfe’s Irish Names and Surnames
and O'Hart's Irish Pedigrees