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
National Museums IrelandThe last letter written by Seán Mac Diarmada (Sean MacDermott) letter, 11 May 1916
Warwick Digital CollectionsImage of Sackville Street after Rebellion in Dublin, April, 1916 booklet, April 1916