Dettlaff authors commemorative book on the history of the golf professional

While working toward Master Professional status with the Professional Golfers’ Association (PGA) of America, Billy Dettlaff was required to write a thesis on one aspect of the golf profession. He chose a topic near and dear to his heart: the evolution of the golf professional. Dettlaff’s late father, who qualified for both the U.S. Open and the PGA Championship in 1934, was a PGA profession...