Clinton E. Johnson currently volunteers as a Veterans Service Officer for the National Association for Black Veterans and the American Legion.  Before assuming this role, he served as a board member with the Oklahoma Pardon and Parole Board for 8 years after being appointed by Governor Brad Henry. He also retired from the Oklahoma Department of Corrections where he held various positions over a 26 year career.

Johnson holds a master's degree in Criminal Justice Administration from Oklahoma City University.

In his spare time, he enjoys researching his family's history and he is a member of the Black Genealogy Research Group of Oklahoma and the Oklahoma Historical Society.