RTE Century Ireland Ireland’s Opportunity? The First World War & 1916 open_in_new article, 2016
National Museums IrelandThe last letter written by Seán Mac Diarmada (Sean MacDermott) letter, 11 May 1916
dippamRoyal Commission on Arrest and subsequent treatment of Mr. Francis Sheehy Skeffington open_in_new document, August 1916