"Eoghan Rua was relatively unknown to English speakers until 1924, although famous among Irish-speakers, especially in Munster.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).