1) John O'Brien (1960-1994) is the author of Leaving Las Vegas.
2) John O'Brien 1953- is the illustrator of The Twelve Days of Christmas.
3) O'Brien, John (John Joseph) Milan Kundera.....
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5) John O'Brien 1943- is the author of At Home in the Heart of Appalachia.
6) John O'Brien 1946- is the author of Person-Centered Planning with MAPS and PATH.
7) John O'Brien (1879-1952) is the author of Around the Boree Log.
8) John A. (Anthony) O'Brien (1893-1980) is the author of The White Harvest.
9) John B. O'Brien (1938-1999) is the author of The Irish emigrant experience in Australia.
10 John Maxwell O'Brien 1939- is the author of Alexander The Great: The Invisible Enemy.
11) John O'Brien author of Seeds of a New Church is a member of the Holy Ghost Fathers; the letters C.S.Sp. are often written after the name.
12) A Captain Unafraid appears to have been actually written by Horace Herbert Smith; the subject "Captain Dynamite" Johnny O'Brien was a well-known ship captain in the late 19th/early 20th century.
13) John J. O'Brien is the author of true crime works including Teresita, the voice from the grave.
14 ) John O'Brien author of Return to Gethsemane is a member of the Franciscan Friars; the letters OFM are often written after the name.
15) John O'Brien 1954- is the author of Distant Voices.
16) John O'Brien, author of Dementia, is a medical doctor whose name is usually given as John O'Brien, DM.
17) John O'Brien 1962- is the author of Harlequin Britain.
18) John O'Brien 1955- is the New Zealand author of Endless Wave.
19) John O'Brien (1841-1879) is the author of A History of the Mass and its Ceremonies in the Eastern and Western Church.
20) John O'Brien, 18th century Catholic Bishop of Cloyne, wrote the Irish-English dictionary Focloir gaoidhilge-sacs-bearla.
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