House of OireachtasMessage to the Free Nations of the World open_in_new debate, 21 January 1919
UCD History HubAnglo-Irish War/War of Independence (The Irish Revolution Lecture 7) podcast, 2014
Decade of Centenaries timelineBallytrain RIC barracks captured and sacked by the IRA. photograph, 1920
Hathi Trust Digital LibraryThe struggle of the Irish people. Address to the Congress of the United States book, January 1921