 Hidden Ulster, Protestants and the Irish language

Hidden Ulster, Protestants and the Irish Language is a book by Pádraig Ó Snodaigh published in 1973; revised editions appeared in 1977 and 1995.The book's thesis was to confirm the cultural—that is, Gaelic—unity between the Irish Catholic natives of Ulster, in northern Ireland, and the Scottish Protestant settlers of the Ulster Plantation.