This collection contains Kathleen Daly Clarke's personal and professional papers as well as her collection of materials about her husband Thomas Clarke and Irish politics during the early- to mid-1900s. Clarke's personal papers contain correspondence, photographs, artwork, ephemera, and clippings. Of note are cards she received from political figures, including Eamon de Valera, Douglas Hyde, and Sean Ó Ceallaigh, some of which were printed by Cuala Press and Three Candles Press. Her collection on Thomas Clarke and Irish politics include artifacts, ephemera, and photographs. A significant portion of the materials are publications and ephemera circulated by Irish political groups, including Sinn Fein and Fianna Fail.