Letter from P. J. Brennan, Secretary of the Bureau of Military History, to Florence O'Donoghue, Loch Léin, Eglantine Park, Douglas Road, Cork, enclosing a letter from Eamon O'Connor, Ashe Street, Tralee, Co. Kerry, dated 28 January, and Brennan's reply to it, - Bureau of Military History, 1913-1921 (1948)