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 timelineMembers of the First Dáil at a meeting April 10th, 1919 photograph, 10 April 1919
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 & CultureWar News No.3- Anti-Treaty Newsletter open_in_new newsletter, 30 June 1922