Ciaran O’Neill, Ussher lecturer in history at Trinity College, Dublin, will conduct a seminar titled “Power in 19th-Century Britain and Ireland” on Nov. 12 from noon to 2 p.m. at Connolly House. O’Neill is president of the Society for the Study of Nineteenth-Century Ireland and the author of Catholics of Consequence: Transnational Education, Social Mobility and the Irish Catholic Elite, 1850-1900 and Irish Elites in the Nineteenth Century. Sponsor: Irish Studies.