UCD History HubArthur Griffith, Sinn Fein and the IRB (The Irish Revolution Lecture 3) podcast, 2014
UCD History HubAftermath of The Rising and 1917 By-Elections. (The Irish Revolution Lecture 5) podcast, 2014
Hathi Trust Digital LibraryThe struggle of the Irish people. Address to the Congress of the United States book, January 1921
National Archives UKLetter from Sir James Craig to the Prime Minister open_in_new document, 29 July 1921
National Archives UK Cabinet Memorandum. The Irish Situation. open_in_new document, 30 May 1922