National Portrait GalleryThe Mad Bull (James Craig, 1st Viscount Craigavon; Michael Collins) cartoon, 15 February 1922
History Ireland Tit-for-tat: the War of Independence in the northern counties open_in_new article, 2012
Documents on Irish Foreign PolicyHeads of agreement between the provisional government and the government of Northern Ireland open_in_new document, 30 March 1922
Warwick Digital CollectionsPeace with Ireland: Labour’s Proposals for a Settlement by Consent leaflet, 26 January 1921
Flickr - NLIMilitary carrying out official reprisal following an ambush in Meelin, Co. Cork photograph, January 1921
Decade of Centenaries timelineBallytrain RIC barracks captured and sacked by the IRA. photograph, 1920
Decade of Centenaries timelineIreland’s Solemn League and Covenant: Anti-conscription protest form document, April 1918