UCD History HubArthur Griffith, Sinn Fein and the IRB (The Irish Revolution Lecture 3) podcast, 2014
Decade of Centenaries timelineIrish Delegation travels to London July 1921 photograph, July 1921
National Archives UK Cabinet Memorandum. The Irish Situation. open_in_new document, 30 May 1922
National Archives UK Cabinet Memorandum – Ireland (Draft Constitution) open_in_new document, 1 June 1922