RTE Century Ireland Introducing de Valera – The East Clare by-election and the rise of an Irish political leader open_in_new article, 2017
Decade of Centenaries timelineIreland’s Solemn League and Covenant: Anti-conscription protest form document, April 1918
History HubDiarmaid Ferriter discusses the Anglo Irish Treaty (Full Interview) video clip, 2020
National Archives UK Cabinet Memorandum. The Irish Situation. open_in_new document, 30 May 1922