Líon alt a bhfuil an ghné seo luaite iontu: 1
Is iad na leabhair is minice a luaitear: Mil na mbeach (1911); Gleanings from Irish manuscripts (1919); Leabhar Chlainne Suibhne (1920); The Place-names of Westmeath (1915); The Flight of the Earls (Ó Cianáin) (1916); The Life of Aodh Rua Ó Domhnaill (Lughaidh Ó Cléirigh) (1948–1957); Irish men of learning (1947); Irish chiefs and leaders (1960)