Decade of Centenaries timeline
Fire fighters extinguishing the flames, Messrs. William Campbell & Co
photograph, 22 May 1922
Hathi Trust Digital Library
The struggle of the Irish people. Address to the Congress of the United States
book, January 1921
UCD History Hub
Aftermath of The Rising and 1917 By-Elections. (The Irish Revolution Lecture 5)
podcast, 2014