History HubDiarmaid Ferriter discusses the Anglo Irish Treaty (Full Interview) video clip, 2020
Google Arts and CultureMemorandum from Arthur Griffith to de Valera on Ulster open_in_new document, 8 November 1921
Documents on Irish Foreign PolicyHeads of agreement between the provisional government and the government of Northern Ireland open_in_new document, 30 March 1922
Hathi Trust Digital LibraryThe struggle of the Irish people. Address to the Congress of the United States book, January 1921