In the scene where the Ranger meets the governor with his mask on, the music in the background is from the soon-to-be Maverick (1957) theme.
Both this film and "Maverick" credit David Buttolph with the music.
In 1947 Bonita Granville married Jack Wrather, who became the longtime producer of the "Lone Ranger" TV series and films. Following this movie, Granville retired from acting to become a producer on the long-running Lassie (1954) TV series. Her final film appearance was a cameo in The Legend of the Lone Ranger (1981), also produced by Wrather.