UCD History HubArthur Griffith, Sinn Fein and the IRB (The Irish Revolution Lecture 3) podcast, 2014
National Archives UKIrish Settlement: Proposals of the British government open_in_new document, 20 July 1921
Google Arts and CultureInstructions to Plenipotentiaries from Cabinet open_in_new document, 7 October 1921