Donald Robert McCallister (May 3, 1934 – January 26, 2021) was an American professional golfer. He won two events on the PGA Tour and three other major tournaments in the 1960s. He later worked as the head pro at golf clubs in California and Oregon, and competed on the Senior PGA Tour. McCallister played for the University of Southern California golf team as an amateur, receiving All-American honors from 1956 to 1958, and becoming the first player to win the Pac-8 Conference and Southern California Intercollegiate Athletic Conference titles in consecutive years. He turned professional in 1959 and played full-time on the tour after serving in the U.S. Army. He retired from the tour in 1969 after being affected by early onset arthritis. Early life McCallister was born in Toledo, Ohio, on May 3, 1934. The McCallister family moved to Corona, California, and joined the San Gabriel Country Club. He started playing golf when he was 14 years old, after his father Don urged him to try the sport. McCallister was awarded a scholarship to attend the University of Southern California. There, he earned All-American honors three times as a member of the golf team – first-team in 1956 and 1957, third-team in 1958. He was the first (and, at the time of his death, the only) player to win both the Pac-8 Conference and Southern California Intercollegiate Athletic Conference titles in back-to-back seasons. McCallister entered several PGA Tour events as an amateur, and ultimately turned professional in 1959. He only started playing full-time on the tour one year later, after serving in the U.S. Army and being stationed at Fort Ord in Monterey Bay. He established a record of shooting a score of 62 at the base golf course, which has stood for over sixty years. Professional career During his time on the tour, McCallister was sponsored by Lawrence Welk. He won the first title of his professional career at the 1960 Paul Bunyan Open, held at the Penobscot Valley Golf Club in Orono, Maine. He finished ahead of Tony Lema and won $2,000 in prize money. McCallister won two PGA Tour events during his career, both of which played in California in October. His first title came at the 1961 Orange County Open Invitational. He came from behind by five strokes on the final day to defeat Al Geiberger, his friend and former college teammate. On the final