Ó Nualláin, N., & Hayes, R. J. (1938). Letter from Nicholas Ó Nualláin, Secretary, Department of the Taoiseach, to Richard J. Hayes Director of the National Library of Ireland, regarding the donation to the Library by Eamon De Valera of letter from Roger Casement to Father Eamon Murnane, and enclosing copy of letter to De Valera from the very Reverend Michael O'Riordan regarding the Casement letters (30 November 1938).

Ó Nualláin, Nicholas, and Richard J. Hayes. Letter from Nicholas Ó Nualláin, Secretary, Department of the Taoiseach, to Richard J. Hayes Director of the National Library of Ireland, Regarding the Donation to the Library by Eamon De Valera of Letter from Roger Casement to Father Eamon Murnane, and Enclosing Copy of Letter to De Valera from the Very Reverend Michael O'Riordan Regarding the Casement Letters (30 November 1938). 1938.