YouTube - RTEWhy did Edward Carson not become Northern Ireland’s Prime Minister? video clip, 2021
Decade of Centenaries timelineIrish Delegation travels to London July 1921 photograph, July 1921
National Archives UK Letter from General Smuts to Eamon de Valera open_in_new letter, 4 August 1921
Houses of OireachtasCorrespondence between de Valera and Lloyd George open_in_new debate, 14 September 1921