Google Arts and CultureMemorandum from Arthur Griffith to de Valera on Ulster open_in_new document, 8 November 1921
National Archives UK The Irish Settlement-6th December 1921 open_in_new document, 6 December 1921
Decade of Centenaries timelinePro-treaty leaflet detailing some arguments about the anti-treaty supporters leaflet, 15 June 1922