Documents on Irish Foreign PolicyHeads of agreement between the provisional government and the government of Northern Ireland open_in_new document, 30 March 1922
National Archives UK Letter from General Smuts to Eamon de Valera open_in_new letter, 4 August 1921
Flickr - NLIThe shell of the G.P.O. on Sackville Street after the 1916 Rising photograph, May 1916