The Flann O’Brien papers document the life and work of the Irish writer and humorist Flann O’Brien, and include the papers of his wife, Evelyn O’Nolan, who managed his estate after his death, and his brother, Micheál Ó Nualláin, an illustrator and portrait artist. The papers comprise awards, correspondence, clothing, degrees, furniture and personal belongings, literary manuscripts, medals, notes, paintings, passports, photographs, scrapbooks, sketches, and theater programs.

Collection is open for research.