National Museums Ireland
Howth Gun Running, 1914
Photograph, 26 July 1914
UCD History Hub
Arthur Griffith, Sinn Fein and the IRB (The Irish Revolution Lecture 3)
podcast, 2014
RTE Century Ireland
Between armed rebellion and democratic revolution: the Irish Question in 1917
open_in_newarticle, 2017
Decade of Centenaries timeline
Ireland’s Solemn League and Covenant: Anti-conscription protest form
document, April 1918
National Archives UK
Letter from Sir James Craig to the Prime Minister
open_in_newdocument, 29 July 1921