YouTube - RTEWhat role did sectarianism play in the creation of Northern Ireland? video clip, 2021
British Academy Political History of Northern Ireland since Partition open_in_new Article, 1999
Houses of OireachtasDáil Debate: executions of four IRA leaders open_in_new speech, 8 December 1922
UCD Digital LibraryGroup of IFS Army soldiers firing artillery on the Four Courts photograph, 28 June 1922
Warwick Digital CollectionsImage of Sackville Street after Rebellion in Dublin, April, 1916 booklet, April 1916