Callison was born in
Lexington, South Carolina on January 22, 1923, as the son of Tolliver Cleveland Callison and Margaret Reel Callison. He graduated from
Lexington High School, before attending the
University of South Carolina. It was there he met Helen Elizabeth Leppard; they married on July 9, 1949 and had five children. He served in the
Army Air Force during World War II, before returning to the University of South Carolina Law School, earning a degree by 1947. Callison died in
Eugene, Oregon on November 25, 2022, at the age of 99. ==References==