- A celebrated case: the bishop of Belleville, Ill., vs. St. Patrick's Parish, East St. Louis, Ill: Its history and moral lessons (Fr. Souvay's collection of pamphlets) by C. F O'Leary, 1899
- The Physiologic Basis of Surgery Third Edition by J Patrick O'Leary, 2002
- (Paperback SF) Japanese Language Book by Patrick O'Leary, 2003
- My trip to Santa Catalina Island by Edward Patrick O'Leary, 1926
- Wayside Memories: Songs and Poems (1915) by Edward Patrick O'leary,
- A shamrock up a bamboo tree;: The story of eight years behind the 8-ball in Shanghai, 1941-49 (A Banner book) by Cedric Patrick O'Leary, 1956
- Most Ancient Lives of Saint Patrick, The by Rev James O'Leary, 2002-06-01
- Theories of the State: The Politics of Liberal Democracy by Brendan O'Leary, Patrick G. Dunleavy, 1987-10
- Irish Guards Soldiers: Michael John O'leary, Jack Doyle, John Patrick Kenneally, Josef Locke, Edward Colquhoun Charlton, Ian Malone
- The Most Ancient Lifes of Saint Patrick by James O'Leary, 2008-03-03
- The Most Ancient Lives of Saint Patrick Including the Life By Jocelin Hitherto Unpublished in America Illustrated with the Most Ancient Engravings by Rev James O'Leary, 1875-01-01
- The Most Ancient Lives of Saint Patrick, Including the Life by Jocelin and His Extant Writings, With a Preface and Chronological Table by James O'leary, 2010-01-15
- The Most Ancient Lives Of Saint Patrick: Including The Life By Jocelin (1874) by James O'Leary, 2009-08-10
- The Most Ancient Lifes of Saint Patrick by Rev. James O'Leary, 2008-03-03
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