任職於美國國家地面情報中心(National Ground Intelligence Center),是《軍事史季刊》(MHQ: The Quarterly Journal of Military History)的撰稿編輯,最近則是擔任美國海軍研究所(Naval Postgraduate School)訪問教授。
歐康納的著作有:
《武器及人員:戰爭、武器及侵略的歷史》(Of Arms and Men: A History of War, Weapons and Aggression),
《神聖的載具:對戰艦的崇拜以及美國海軍的崛起》(Sacred Vessels: The Cult of Battleship and the Rise of the U.S. Navy),
《第二位騎士的馳騁:戰爭之誕生及死亡》(Ride of the Second Horseman: The Birth and Death of War),
《刀劍之魂:從史前到現在的武器及戰爭圖說歷史》(Soul of the Sword: An Illustrated History of Weaponry and Warfare from Prehistory to the Present)以及小說Fast Eddie。