William White –
Bill White came to Merion from England to coach cricket, tennis and squash in 1915. He was the heart and soul of Merion racquet sports for 45 years from 1915 to 1955.
Brendan McRory – In 1928, 16-year-old McRory arrived at Merion to work as a bell boy. Eventually he became Bill White’s assistant. Upon Whitey’s death he became the head pro.
James J. Tully, Jr. – Jim Tully was probably the best player of the three pros and sparked a golden age of squash at Merion. Having grown up at Merion where his father was the first squash pro, he began working as a ball boy, locker room assistant, and setting pins in the bowling alley.