What occupation was shared by Rudolph Polk and Joseph Santley?
Rudolph Polk: Rudolph ("Rudy") Polk (25 November 1892 New York, New York – 16 June 1957 Los Angeles) was an American concert violinist based in New York City during his early years and, during his later years, a Hollywood film director, film industry executive, and artist manager for Jascha Heifetz, Vladimir Horowitz, José Iturbi, and Gregor Piatigorsky. Joseph Santley: Joseph Mansfield Santley (born Joseph Ishmael Mansfield, January 10, 1890 – August 8, 1971) was an American actor, singer, dancer, writer, director, and producer of musical theatrical plays motion pictures and television shows.
director