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
Decade of Centenaries timelineIrish Delegation travels to London July 1921 photograph, July 1921
Google Arts and CultureInstructions to Plenipotentiaries from Cabinet open_in_new document, 7 October 1921