 O'Brien had always been gravely disturbed by the Irish Parliamentary Party's involvement with "that sinister sectarian secret society", the Ancient Order of Hibernians, often known as the Molly Maguires, or "the Mollies" – what he called "the most damnable fact in the history of this country", and was bitterly resentful and unsparing in his attacks upon it.AOH members represented Catholic-nationalism of a Ribbon tradition, their Ulster Protestant counterpart the Orange Order.Joseph Devlin, the AOH Grandmaster had attached himself to the Dillonite section of the Irish Party, was now additionally General Secretary of O'Brien's adopted UIL.