A holograph work by William O'Brien entitled "The Irish Free State: secret history of its foundation". With an introduction by Mrs. Sophie O'Brien, c. 1930.

Míreanna comhchosúla

• Reviews: Golden memories, love letters and prison letters of William O'Brien edited by Sophie O'Brien, reviewed.
  Foilsithe / Cruthaithe: (1928)
• Holograph version of Mrs. William O'Brien's "Recollections of a long life" (1891-1928). 1929.
• Forthcoming works: "Unseen friends" by Mrs. William O'Brien.
  Foilsithe / Cruthaithe: (1912)
• Review of Mrs. Wm. O'Brien's "My Irish friends".
  de réir: T.
  Foilsithe / Cruthaithe: (1939)
• Editorial on Papal recognition of "Irish fireside hours" by William O'Brien by the papal blessing to Mrs. O'Brien.
  Foilsithe / Cruthaithe: (1929)