National Museums IrelandThe last letter written by Seán Mac Diarmada (Sean MacDermott) letter, 11 May 1916
Warwick Digital CollectionsImage of Sackville Street after Rebellion in Dublin, April, 1916 booklet, April 1916
RTE Century Ireland Ireland’s Opportunity? The First World War & 1916 open_in_new article, 2016
Decade of Centenaries timelineJohn Redmond has ‘Second Thoughts’ about ‘Home Rule’ political cartoon, October 1913