O'Brien, A. P. (1922). Newspaper cuttings, mainly as part of a series of articles titled 'The Irish Enigma' by Andrée Viollis, recording events of the Irish Civil War. Also includes an article concerning an anecdote Winston Churchill published relating to the negoiations of the Anglo-Irish Treaty.

O'Brien, Art Patrick. Newspaper Cuttings, Mainly as Part of a Series of Articles Titled 'The Irish Enigma' by Andrée Viollis, Recording Events of the Irish Civil War. Also Includes an Article Concerning an Anecdote Winston Churchill Published Relating to the Negoiations of the Anglo-Irish Treaty. 1922.