Were both Rudolph Polk and Simon West concert violinists?
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. In Hollywood, Polk was the assistant musical director to Morris Stoloff at Columbia Pictures. After World War II, Polk was musical director for Enterprise Studios.
Cora Folsom Salisbury Cora May Folsom Salisbury Aulmann (February 12, 1868 — April 16, 1916), sometimes billed as C. Folsom Salisbury, was an American musician and composer of piano music, including works in the ragtime genre. She was also the first vaudeville partner of violinist Benjamin Kubelsky, later known as comedian Jack Benny.