Houses of OireachtasDáil Debate: executions of four IRA leaders open_in_new speech, 8 December 1922
National Archives UK Letter from General Smuts to Eamon de Valera open_in_new letter, 4 August 1921
Bicycles, Barracks & BandoliersMemo regarding Catholic recruitment in the RUC and USC memo, March 1922
National Museums IrelandThe last letter written by Seán Mac Diarmada (Sean MacDermott) letter, 11 May 1916
RTE Century Ireland Ireland’s Opportunity? The First World War & 1916 open_in_new article, 2016