YouTube - RTEWhat role did sectarianism play in the creation of Northern Ireland? video clip, 2021
National Archives UKLetter from Lloyd George inviting Craig and de Valera to a conference open_in_new document, 24 June 1921
National Archives UKIrish Settlement: Proposals of the British government open_in_new document, 20 July 1921
Documents on Irish Foreign Policy The Collins – Craig agreement open_in_new document, 23 January 1922
National Portrait GalleryThe Mad Bull (James Craig, 1st Viscount Craigavon; Michael Collins) cartoon, 15 February 1922