O'Leary, M., & O'Brien, W. (1921). Copy letter from M.J. O'Leary, assistant secretary of the Socialist Party of Ireland, to William O'Brien informing him of the resolution that was passed at their meeting to expel him and Comrade O'Shannon from the Party due to their guilt of breach of party discipline and their futile efforts to build up a Communist Party in Ireland.

O'Leary, M.J, and William O'Brien. Copy Letter from M.J. O'Leary, Assistant Secretary of the Socialist Party of Ireland, to William O'Brien Informing Him of the Resolution That Was Passed at Their Meeting to Expel Him and Comrade O'Shannon from the Party Due to Their Guilt of Breach of Party Discipline and Their Futile Efforts to Build Up a Communist Party in Ireland. 1921.