Papers of J. F. X. O'Brien, treasurer of the Irish Parliamentary Party: letters, memoranda, account books, etc., c. 1879-1917, relating to the financial and other affairs of the party, evicted tenants, the Irish Convention, etc., principal correspondents William O'Brien, Alfred Webb, Michael Davitt, John Redmond, Thomas Sexton, Charles Gavan Duffy, Justin Mc Carthy,