UCD Digital LibraryGroup of IFS Army soldiers firing artillery on the Four Courts photograph, 28 June 1922
National Archives UKLetter from Sir James Craig to the Prime Minister open_in_new document, 29 July 1921
National Archives Home Rule : Government of Ireland Amendment Bill open_in_new document, 23 April 1918
Hathi Trust Digital LibraryThe struggle of the Irish people. Address to the Congress of the United States book, January 1921
Flickr - NLIMilitary carrying out official reprisal following an ambush in Meelin, Co. Cork photograph, January 1921
Warwick Digital CollectionsImage of Sackville Street after Rebellion in Dublin, April, 1916 booklet, April 1916