Further information on Who Fears to Speak of Easter Week a href="http://bureauofmilitaryhistory.ie/reels/bmh/BMH.WS0355.pdf#page=24">here, in the witness statement of Kitty O'Doherty in the Bureau of Military History - she says her sister, a nun, wrote it on the back of an envelope on 3 May 1916 when she heard of the execution of PH Pearse, and it was smuggled out by an Irish teacher.