While serving as pastor of First Assembly of God Church in Duquesne, Pennsylvania from 1964-1970, he completed the Master of Divinity degree at Reformed Presbyterian Seminary. He was commissioned as a Navy Lieutenant in May of 1971 and entered active duty in June 1971. In 1979 he was selected for Naval Postgraduate School and attended Princeton Theological Seminary, receiving the Master of Theology degree in June 1980.
As Command Chaplain of the USS INDEPENDENCE from 1988 to 1990 he helped prepare the ministry that would be provided to embarked sailors and Marines first to respond to the Kuwaiti crisis and Gulf War.
Charles Marvin retired 31 March 1998 as the Assistant Chief of Staff, Religious Ministries, Marine Corps Recruit Depot/Western Region, San Diego, CA.
Marvin's military awards include the Legion of Merit, Meritorious Service Medal (2), Navy Commendation Medal (3), Navy Achievement Medal, Meritorious Unit Citation, Navy Battle "E" Ribbon (3), National Defense Medal (2), Sea Service Ribbon and Overseas Ribbon.
After his retirement Marvin became the Director of the Chaplains Department and Chaplain Ecclesiastical Endorsing Agent for the Assemblies of God, serving until his retirement in August 2005. Later he was asked to become the Executive Director of the NAE Chaplains Commission, serving in that position from his home in San Diego until July 2007. He continues serving as an Associate Endorsing Agent for the Assemblies of God.
Chaplain Charles Marvin married Beverly Sliwinski, a graduate of Chase-Western Reserve, in Cleveland, Ohio, June 23, 1962. They have four children, Julie Randolf, Mandy, Sara Daniel, and Matthew, plus six grandchildren.
[Editor's Comment: It was my privilege to serve with Chaplain Charles Marvin, whom we called "Chuck," as an endorser and later under his able leadership when he was selected to serve as the Executive Director of NAE Chaplains Commission. I am grateful to Janice Robinson Russ, wife of the Rev. Mr. Wesley Russ, former Bishop and Superintendent of the Mid-Atlantic Conference for sending me the Centurion of the Year Bulletin, and for Wesley Russ who sent a photo of those Chaplain (Colonel) Jerry Jones, Director/Endorser of IPHC Chaplains Ministries, and our IPHC people he invited to attend the annual Centurion Dinner Banquet.
Chaplain, Brigadier General David Cyr, Executive Director of NAE Chaplains Commission presided and presented Chaplain Charles Marvin the prestigious Centurion Award (Centurion Helmet). The Southern Methodist University Singers provided the special music. Chaplain (Colonel) Scott McChrystal, Chairman, NAE Chaplains Commission and Endorser for the Assemblies of God, gave the closing remarks and benediction.