YouTube - RTEWhat role did sectarianism play in the creation of Northern Ireland? video clip, 2021
Documents on Irish Foreign Policy The Collins – Craig agreement open_in_new document, 23 January 1922
Bicycles, Barracks & BandoliersMemo regarding Catholic recruitment in the RUC and USC memo, March 1922
History Ireland The Boundary Commission Debacle 1925, aftermath & implications open_in_new article, 1996