National Portrait Gallery
John Dillon
photograph & RIA Biography
YouTube - RTE
Ireland 1912-1916: An Animated History from Home Rule to Easter Rising
video clip, 2016
Google Arts and Culture
Memorandum from Arthur Griffith to de Valera on Ulster
open_in_newdocument, 8 November 1921
Houses of Oireachtas
Correspondence between de Valera and Lloyd George
open_in_newdebate, 14 September 1921
UCD History Hub
Aftermath of The Rising and 1917 By-Elections. (The Irish Revolution Lecture 5)
podcast, 2014