The accompanying text in 'The Clans of the Scottish Highlands' by James Logan begins as follows: "CLANN DONUILL NAN EILLEAN, THE MAC DONALDS OF THE ISLES The Someleds, those famous warriors who ruled the destinies of the West Highlands and Isles in the early ages of Scottish history, are the progenitors of this renowned clan. The patronymic is derived from Donald, son of Ranald, or Reginald, who flourished in the beginning of the thirteenth century. The ancient form in which it appears is Domhnail, of which Latin writers made Donaldus, but it is now Donull which may be the true orthography, and would signify 'brown eye'"
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