Gibson, Gibbs, Gilbertson
Gibson, Gibbs, Gilbertson—These three names are the anglicised forms of Mac Giolla-Bríghde, and the sept is a branch of the clan Buchanan. The name is also written McBride, M'Gilbride, and M'Ilvreed. The Gibsons and Gibbs were located in Glendaruel, in Cowal. The Buchanan sept is descended from the Buchanans of Arduill. Another form is M'Gilbert.
Alphabetical Index of Anglicised Surnames in Ireland
See also Woulfe’s Irish Names and Surnames
… and O'Hart's Irish Pedigrees