YouTube - RTE
What role did sectarianism play in the creation of Northern Ireland?
video clip, 2021
National Archives UK
Letter from Sir James Craig to the Prime Minister
open_in_newdocument, 29 July 1921
History Ireland
The Boundary Commission Debacle 1925, aftermath & implications
open_in_newarticle, 1996
Documents on Irish Foreign Policy
Notes of a conference with the Irish Boundary Commission
open_in_newdocument, 3 December 1925