Youtube
The Ulster Solemn League and Covenant – BBC Documentary
TV programme, 2012
National Archives UK
Irish Settlement: Proposals of the British government
open_in_newdocument, 20 July 1921
National Portrait Gallery
The Mad Bull (James Craig, 1st Viscount Craigavon; Michael Collins)
cartoon, 15 February 1922
Documents on Irish Foreign Policy
Notes of a conference with the Irish Boundary Commission
open_in_newdocument, 3 December 1925