Decade of Centenaries timelineFire fighters extinguishing the flames, Messrs. William Campbell & Co photograph, 22 May 1922
UCD Digital LibraryGroup of IFS Army soldiers firing artillery on the Four Courts photograph, 28 June 1922
National Archives UK Cabinet Memorandum. Ireland – Capture of Four Courts. open_in_new document, 30 June 1922
National Archives UKLetter from Lloyd George inviting Craig and de Valera to a conference open_in_new document, 24 June 1921
National Museums IrelandThe last letter written by Seán Mac Diarmada (Sean MacDermott) letter, 11 May 1916