In a 1903 book, Douglas Hyde, an Irish scholar from Roscommon who had learned Irish, referred to him as "a schoolmaster named O'Sullivan, in Munster" in his book The Songs of Connacht (which includes a drinking song by Ó Súilleabháin).
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Ó Súilleabháin was then working for the Nagle family, a wealthy Anglo-Irish, but Catholic and Irish-speaking, family in Fermoy, County Cork.
Fernando de la Rúa | Tô Huy Rứa | To Huy Rua | Mícheál Ó Súilleabháin | Matt Rua | Antonio de la Rúa | Turtle Tower (''Tháp Rùa'') on Hoàn Kiếm Lake, the natural habitat of the turtle in central Hanoi | Piho Rua | Michael Rua | Maurício Rua | Mauricio Rua | Eoghan Quigg | Eóghan of Argyll | Eoghan Corry |