Bowman (September 19, 1934 - August 22, 2013) was a former Director of Advanced Space Programs Development for the U.S.
Air Force in the Ford and Carter administrations, and a former United States Air Force Lieutenant Colonel with 101 combat missions.
He received a Ph.D.
in aeronautics and nuclear engineering from the California Institute of Technology.
Bowman, the father of theologian Robert M.
Bowman, Jr., was the founding archbishop of the United Catholic Church, an "independent Catholic fellowship" created in 1996 and held to be connected through apostolic succession to the Old Catholic Churches.
Bowman retired as archbishop in June 2006.
He was consecrated as bishop on 18 April 1996 by Bishop William Dennis Donovan (1943-1997), assisted by Bishops Orlando Hyppolitus Lima y Aguirre (1934-2009) and Grant W.
Cover (born 1965).
Additionally, he was executive director of Christian Support Ministries.
Bowman was a prominent figure in the 9/11 Truth movement.