UCD History Hub
Arthur Griffith, Sinn Fein and the IRB (The Irish Revolution Lecture 3)
podcast, 2014
Houses of Oireachtas
Correspondence between de Valera and Lloyd George
open_in_newdebate, 14 September 1921
National Archives UK
Cabinet Memorandum – Ireland (Draft Constitution)
open_in_newdocument, 1 June 1922