Collection: James Connolly Correspondence Letter ID: 613-page527 Date: 1915-04-12 Source: Between Comrades, James Connolly, Letters and Correspondence 1889-1916, Edited by Donal Nevin, Gill & Macmillan, Dublin 2007.
Collection: Patrick H. Pearse Letters Letter ID: L.389/NLI Date: 1915-04-12 Source: The letters of P.H. Pearse, Edited by Séamus Ó Buachalla, Gerrards Cross, Bucks.: Smythe, 1980.
Sender Address: St Enda's School, Cullenswood House, Rathmines, Dublin