A native of Batesville, Mississippi, Tohill played at Mississippi State University from 1958 to 1960, where he was awarded letters in 1959 and 1960. He served as an assistant at TCU before taking over as head coach for Jim Pittman, who died midway through the 1971 season. Seventeen months after replacing Pittman, Tohill had a serious automobile accident that nearly killed him and left him with a prosthetic foot. Tohill compiled an 11–15 record overall at TCU. He was fired after the 1973 season. In 1974, Tohill became part of the recruiting team and the coach of the defensive backs for the Birmingham Americans of the World Football League (WFL). One of his final coaching jobs was at Pelham High School in Alabama, where in 1986 he coached the Panthers in their first winning season ever. Tohill lives in Hoover, Alabama.
^ abJim Pittman coached the first seven games of the season before he died on October 30, 1971. Pittman led TCU to an overall record of 3–3–1 with a conference mark of 2–1. TCU finished 6–4–1 overall and 5–2 in conference for the season.