What star of Silver River became a U.S. citizen in 1942?
Silver River (film): Silver River is a 1948 western film directed by Raoul Walsh and starring Errol Flynn and Ann Sheridan. Errol Flynn: Errol Leslie Flynn (20 June 1909 – 14 October 1959) was an Australian-born American actor who achieved fame in Hollywood after 1935. Errol Flynn:  He became a U.S. citizen in 1942.
Errol Leslie Flynn