Bureau of Military History
The Minister of Defence orders that the Convention be not held
newsletter, 31 March 1922
Hathi Trust Digital Library
The struggle of the Irish people. Address to the Congress of the United States
book, January 1921
RTE Century Ireland
Introducing de Valera – The East Clare by-election and the rise of an Irish political leader
open_in_newarticle, 2017
dippam
Royal Commission on Arrest and subsequent treatment of Mr. Francis Sheehy Skeffington
open_in_newdocument, August 1916