Google Arts and CultureMemorandum from Arthur Griffith to de Valera on Ulster open_in_new document, 8 November 1921
Bicycles, Barracks & BandoliersMemo regarding Catholic recruitment in the RUC and USC memo, March 1922
Houses of OireachtasCorrespondence between de Valera and Lloyd George open_in_new debate, 14 September 1921
Hathi Trust Digital LibraryThe struggle of the Irish people. Address to the Congress of the United States book, January 1921
RTE Century Ireland Ireland’s Opportunity? The First World War & 1916 open_in_new article, 2016