Jascha Gurewich
Jascha Gurewich (July 4, 1896, Pruzhany, Russia - September 30, 1938, New York, NY) was a saxophonist who was a member of John Philip Sousa's band, a noted solo performer, and a composer of works for saxophone. Gurewich played a significant role in the popularization of the saxophone in the early 20th-century.