[1] He compiled a record of 114–123–7 , retiring as the fifth-winningest active coach in the National Association of Intercollegiate Athletics (NAIA) in 1987.
After playing college football for one semester at Northwestern Oklahoma State, Prock returned home to work for this father and for the county road department.
Later after retiring as head coach of the Texas Longhorns, Royal would mention that even at the end of his coaching career in 1976, he was still using the principles learned from two men; Bud Wilkinson at the University of Oklahoma, and Metcalf of Hollis High School and Southwestern Oklahoma State.
Allison had learned the game as a four-year starter under coaching legend Bud Wilkinson, and very briefly as a Chicago Bear player under George Halas.
Prock then took over as head coach of Harding in 1964 after Allison returned to Norman to work for the Oklahoma Sooners as a scout.