Born to Frank and Lucy Marceron in Washington, D.C, Marvin graduated from Coolidge High School in 1952. He married his high school sweetheart, Patty Anderson, in 1953 and was drafted during the Korean War. After two years in the Army, he worked for the Army Map Service. He continued to work as a civilian for the Army Corp of Engineers until his retirement in 1989.
He found joy in serving the First Baptist Church of the City of Washington, D.C., where he was baptized in 1953, and served the church in many leadership roles, including as moderator, deacon and welcomer on Sunday mornings.