I was recently gifted with the John Dunning book, "On the Air." It's great reading.
I want you to be aware of trivia I find in the book.
Jerry Siegel, the Superman creator, would not allow Bud Collyer (who played Superman/Clark Kent on radio) to be known until six years after the show was on the air!
In 1939, there was a show on the air DEVOTED to African folk music. It was called, "Africa Trek."