YouTube - RTEWhat role did sectarianism play in the creation of Northern Ireland? video clip, 2021
History Ireland Tit-for-tat: the War of Independence in the northern counties open_in_new article, 2012
Bicycles, Barracks & BandoliersMemo regarding Catholic recruitment in the RUC and USC memo, March 1922
Houses of OireachtasCorrespondence between de Valera and Lloyd George open_in_new debate, 14 September 1921
Flickr - NLIThe shell of the G.P.O. on Sackville Street after the 1916 Rising photograph, May 1916