Career
She is best known for her editions/translations of the various recensions of the Ulster Cycle epic saga Táin Bó Cúailnge. She taught French at a number of schools in Wales between 1919 to 1946, publishing an edition of the Irish tale Tóruigheacht Gruaidhe Griansholus ("The Pursuit of Gruaidh Ghriansholus") in 1922, and Ireland and Wales, their historical and literary relations in 1924. During this time she published an edition of Eachtra Uilliam, an Irish version of the werewolf legend of Guillaume de Palerme, in 1949, Five Seventeenth Century Political Poems in 1952, Trompa na bhFlaitheas, an 18th-century Irish translation by Tadhg Ó Conaill of La trompette du ciel by Antoine Yvan, in 1955.
The Stowe Version of Táin Bó Cúailnge in 1961. And Cath Finntrágha in 1962. She retired from DIAS in 1964, but continued to publish: Táin Bó Cuailnge from the Book of Leinster in 1967, and Táin Bó Cúailnge Recension 1 in 1976.
She was fluent in Irish, Welsh and French. Their great-grand uncle was noted Irish philologist and antiquary Eugene O'Curry.