National Museums Ireland
Howth Gun Running, 1914
Photograph, 26 July 1914
UCD History Hub
Aftermath of The Rising and 1917 By-Elections. (The Irish Revolution Lecture 5)
podcast, 2014
RTE Century Ireland
Between armed rebellion and democratic revolution: the Irish Question in 1917
open_in_newarticle, 2017
Google Arts and Culture
Memorandum from Arthur Griffith to de Valera on Ulster
open_in_newdocument, 8 November 1921
National Archives UK
Cabinet Memorandum – Ireland (Draft Constitution)
open_in_newdocument, 1 June 1922