UCD History HubArthur Griffith, Sinn Fein and the IRB (The Irish Revolution Lecture 3) podcast, 2014
National Archives UK Cabinet Memorandum. The Irish Situation. open_in_new document, 30 May 1922
Google Arts & CultureWar News No.3- Anti-Treaty Newsletter open_in_new newsletter, 30 June 1922
National Archives UK Cabinet Memorandum – Ireland (Draft Constitution) open_in_new document, 1 June 1922