Complex sentence: He and his family, wife, Katherine Schuster and son, John Schuster, moved to Beverly Hills, California in 1947 and for the remainder of his career traveled both nationally and internationally giving recitals and playing with the great conductors and orchestras of the world.
Split into simpler sentences: He and his family--wife, Katherine Schuster, and son, John Schuster--moved to Beverly Hills, California in 1947. For the remainder of his career, Schuster traveled both nationally and internationally giving recitals and playing with the great conductors and orchestras of the world.