Documents on Irish Foreign Policy The Collins – Craig agreement open_in_new document, 23 January 1922
National Archives UKIrish Settlement: Proposals of the British government open_in_new document, 20 July 1921
Hathi Trust Digital LibraryThe struggle of the Irish people. Address to the Congress of the United States book, January 1921
Bodleian Library blog 100 years ago: Constitutional Crisis and the Parliament Act of 1911 open_in_new article, 2011