Duil of Drom Ceat, [265]
Dun in place-names, ch. I n. [1]
Dumbarton, [147]
Dun-Angus, [459]
Dungal, the astronomer, [207] ff., [222], [448]
Dun-na-sgiath, [232]
Dunraven, Lord, [459]
Durrow, monastery of, [170], [217], [234]
Dutton's Survey of Clare, [625]
Dyfed in South Wales, [40]