Collection comprises mostly of correspondence from Roger Casement to his cousins Gertrude and Elizabeth Bannister, including a number of letters that he wrote from Pentonville in the weeks and days before his execution. Also included are an annotated hymn and prayer book given to him during his incarceration; a notice from the Court of Criminal Appeal advising of the dismissal of his appeal (on which Casement notes his observations); documents relating to the ‘degradation’ of his knighthood and other honours (with Casement’s notes on this); photographs; his cousin Gertrude Bannister’s admission card to the Court of Criminal Appeal to attend the trial; and a number of memorial cards and letters of condolence. It is worth noting that two of Casement's letters written on 30th July and 2nd of August 1916 were written on the blank side of correspondence received from friends. Casement was prohibited from having paper to write on after the verdict of guilty had been pronounced at the end of June 1916.