Ruaidhri De Valera (1916 - 1978):
Ruaidhri De Valera was born in Dublin and educated at University College, Dublin. From 1946 to 1957 he was the Place-names and Archaeological Officer with Ordnance Survey. From 1957 to 1978 he was Professor of Celtic Archaeology at University College, Dublin. With Sean O Nuallain he published Survey of the Megalithic Tombs of Ireland in four volumes and he revised Sean O'Riordain's Antiquities of the Irish Countryside. He died in Enniskillen.