Houses of OireachtasThe National Situation – Cmdt. Seán O’Hegarty open_in_new speech, 3 May 1922
National Archives UK Letter from General Smuts to Eamon de Valera open_in_new letter, 4 August 1921
Bureau of Military HistoryThe Minister of Defence orders that the Convention be not held newsletter, 31 March 1922
UCD History HubAnglo-Irish War/War of Independence (The Irish Revolution Lecture 7) podcast, 2014