National Portrait GalleryThe Mad Bull (James Craig, 1st Viscount Craigavon; Michael Collins) cartoon, 15 February 1922
National Archives UKLetter from Lloyd George inviting Craig and de Valera to a conference open_in_new document, 24 June 1921
Bicycles, Barracks & BandoliersMemo regarding Catholic recruitment in the RUC and USC memo, March 1922
Warwick Digital CollectionsPeace with Ireland: Labour’s Proposals for a Settlement by Consent leaflet, 26 January 1921
Hathi Trust Digital LibraryThe struggle of the Irish people. Address to the Congress of the United States book, January 1921
RTE Century IrelandBetween armed rebellion and democratic revolution: the Irish Question in 1917 open_in_new article, 2017
Decade of Centenaries timelineJohn Redmond has ‘Second Thoughts’ about ‘Home Rule’ political cartoon, October 1913