Pamphlets written by John A. O'Brien
- POBR 2/71 Title : And Justice for All
- POBR 2/72 Title : Why Drink? Temperance the Safer Way
- POBR 2/73 Title : The Truth about Mixed Marriages
- POBR 2/74 Title : The Catholic Hour: the Mark of a Christian
- POBR 2/75 Title : En Busca de la Iglesia de Cristo
- POBR 2/76 Title : En Busca de la Iglesia de Cristo
- POBR 2/77 Title : Apostolate to the Millions
- POBR 2/78 Title : Apostolate to the Millions
- POBR 2/79 Title : How You Can Share Your Faith
- POBR 2/80 Title : How You Can Share Your Faith
- POBR 2/81 Title : The New Knowledge and the Old Faith
- POBR 2/82 Title : What! Me a Convert Maker? How You Can Win Souls
- POBR 2/83 Title : Finding Christ's Church
- POBR 2/84 Title : Kindness Wins Souls
- POBR 2/85 Title : The Family Fireside
- POBR 2/86 Title : Evolution and Religion: Facing the Facts
- POBR 2/87 Title : The Way of Love: the One Path to Happiness
- POBR 2/88 Title : The Way of Love: the One Path to Happiness
- POBR 2/89 Title : The Origin of Man
- POBR 2/90 Title : Vers L'Eglise du Christ
- POBR 2/91 Title : Vers L'Eglise du Christ
- POBR 2/92 Title : Martinho Lutero
- POBR 2/93 Title : Deus Existe?
- POBR 2/94 Title : The Catholic Religion - Human or Divine?
- POBR 2/95 Title : The Catholic Religion - Human or Divine?
- POBR 2/96 Title : The Building of Character
- POBR 2/97 Title : The Building of Character
- POBR 2/98 Title : God's Heroes
- POBR 2/99 Title : God: Can We Find Him?
- POBR 2/100 Title : The Truth about the Inquisition
- POBR 2/101 Title : The Trek of the Intellectuals to Rome
- POBR 2/102 Title : Character Formation
- POBR 2/103 Title : The Ladder of Love
- POBR 2/104 Title : The Truth About Mixed Marriages
- POBR 2/105 Title : And Justice for All
- POBR 2/106 Title : Telling Our Story to All
- POBR 2/107 Title : Telling Our Story to All
- POBR 2/108 Title : Can America Stay Out of War?
- POBR 2/109 Title : Greetings From Your Pastor
- POBR 2/110 Title : Greetings From Your Pastor
- POBR 2/111 Title : Wanting Peace the People Get War - Why?
- POBR 2/112 Title : The Spiritual Mission of America
- POBR 2/113 Title : Don't Go to Heaven Alone
- POBR 2/114 Title : Don't Go to Heaven Alone
- POBR 2/115 Title : Chain Reaction Converts
- POBR 2/116 Title : Chain Reaction Converts
- POBR 2/117 Title : Twenty-five Questions Non-Catholics Ask
- POBR 2/118 Title : St Augustine: Sinner and Saint
- POBR 2/119 Title : Cardinal Newman Scholar of Oxford
- POBR 2/120 Title : The Test of Courage
- POBR 2/121 Title : The Ladder of Handicaps
- POBR 2/122 Title : The Unknown God
- POBR 2/123 Title : Shall We Live Again?
- POBR 2/124 Title : Can Catholics Separate Church & State?
- POBR 2/125 Title : Can Catholics Separate Church & State?
- POBR 2/126 Title : Why Attend Sunday Mass?
- POBR 2/127 Title : Why a Divine Revelation?
- POBR 2/128 Title : Frequent Holy Communion: Why?
- POBR 2/129 Title : The Origin of Man
- POBR 2/130 Title : Religion: Does It Matter?
- POBR 2/131 Title : Character Formation
- POBR 2/132 Title : God's Heroes
- POBR 2/133 Title : Visita Metodica
- POBR 3/01 Title : Why Not Be A Scholar?
- POBR 3/02 Title : Why Not Be A Scholar?
- POBR 3/03 Title : Seven Ways to Win Converts
- POBR 3/04 Title : Seven Ways to Win Converts
- POBR 3/05 Title : Share Your Faith
- POBR 3/06 Title : Share Your Faith
- POBR 3/07 Title : How Love Helps You
- POBR 3/08 Title : How to Become a Catholic
- POBR 3/09 Title : Courtship and Christianity
- POBR 3/10 Title : What Every Person in Public Office Should Know
- POBR 3/11 Title : The Vanishing Irish
- POBR 3/12 Title : What Every Person in Public Office Should Know
- POBR 3/13 Title : Why Can't Catholics Be Masons?
- POBR 3/14 Title : Why Can't Catholics Be Masons?
- POBR 3/15 Title : How to Get Married
- POBR 3/16 Title : Prayers to the Little Flower
- POBR 3/17 Title : My Daily Visitor
- POBR 3/18 Title : Your Favorite Novenas
- POBR 3/19 Title : Popular Short Litanies
- POBR 3/20 Title : Does Evolution Dispense With God?
- POBR 3/21 Title : Does Evolution Dispense With God?
- POBR 3/22 Title : Converts: How to Win Them
- POBR 3/23 Title : Popular Short Litanies
- POBR 3/24 Title : Fairness in School Aid
- POBR 3/25 Title : What's Become of Father
- POBR 3/26 Title : Novena to Our Lady of Fatima
- POBR 3/27 Title : Novena to Our Lady of Lourdes and St Bernadette
- POBR 3/28 Title : Ring Door Bells, Win Souls
- POBR 3/29 Title : Nazism and Christianity
- POBR 3/30 Title : Prayers to the Holy Ghost
- POBR 3/31 Title : What Think You of Christ?
- POBR 3/32 Title : Prayers to St Anthony
- POBR 3/33 Title : Can Indulgences Be Bought?
- POBR 3/34 Title : Is the Church Woman's Enemy?
- POBR 3/35 Title : Don't Hoard Your Faith: Share It
- POBR 3/36 Title : Achieving Happiness in Marriage
- POBR 3/37 Title : Winning Your Friend for Christ