National Archives UK
Cabinet Memorandum. The Irish Situation.
open_in_newdocument, 30 May 1922
History Ireland
Tit-for-tat: the War of Independence in the northern counties
open_in_newarticle, 2012
National Archives UK
Irish Settlement: Proposals of the British government
open_in_newdocument, 20 July 1921
Google Arts & Culture
War News No.3- Anti-Treaty Newsletter
open_in_newnewsletter, 30 June 1922

Bicycles, Barracks & Bandoliers
Memo regarding Catholic recruitment in the RUC and USC
memo, March 1922
Decade of Centenaries timeline
Ballytrain RIC barracks captured and sacked by the IRA.
photograph, 1920
UCD History Hub
Anglo-Irish War/War of Independence (The Irish Revolution Lecture 7)
podcast, 2014
Bureau of Military History
How Soloheadbeg Ambush Came About – Witness statement
document, 1919