Commander of the 2 Southern Division (1921–22); Director of Organisation (1922); Acting Assistant Chief of Staff,
IRA (June–November 1922): minutes, despatches, operational memoranda, staff lists, and reports on the Southern, Northern and Eastern Command areas
(1916–23); Free State Army intelligence summaries of enemy activity
(1922–4); material concerning republican prisoners in captivity
(1922–5); photographs of members of the IRA (1922–5) and contemporary maps of the Four Courts, King’s Inns and other areas in Dublin
O’Malley Notebooks: series of c.450 interviews with veterans of the War of Independence and Civil War concerning their military experiences.