Wynn began his career as a teacher in Bibb County, Georgia, rising to the post of assistant superintendent. While there he wrote that system's desegregation plan. He was appointed to a national advisory committee on education by President Lyndon Johnson and continued to advise Richard Nixon on desegregation issues.
Wynn was dean of education at Alabama A&M University before he was hired to lead Stillman out of a difficult period of low enrollment. He helped double enrollment during his tenure and also served as a community leader. He chaired the Tuscaloosa Housing Authority board and served on the Alabama Ethics Commission and the board of the United Negro College Fund.
Wynn died at the LaRocca Nursing Home in Tuscaloosa in 2010. He was survived by his wife, Annie Marie, three daughters, and six grandchildren. He was interred in the Chapel of Memories mausoleum at Memory Hill Gardens.
- "Former Stillman College President Cordell Wynn dies in Tuscaloosa at age 83." (April 29, 2010) Associated Press