RTE Century IrelandSinn Féin leaders arrested over alleged ‘German plot’ open_in_new article, 2018
Hathi Trust Digital LibraryThe struggle of the Irish people. Address to the Congress of the United States book, January 1921
National Archives UKLetter from Lloyd George inviting Craig and de Valera to a conference open_in_new document, 24 June 1921
Decade of Centenaries timelineIrish Delegation travels to London July 1921 photograph, July 1921