Here is an interesting biographical piece. It has errors. For example the birthdate is wrong, and one glaring omission is his affiliation with Rosenthal. But it's still kinda cool. The radio information is new to me. I'm inclined to believe that part's true.
My transcription from the book isn't perfect. I didn't have a good copy to look at. I might try to clean it up later.
Who's Who in American Jewry, Vol. 3
Julius Schwartz, Solomon Aaron Kaye, John Simons
Jewish Biographical Bureau, 1939
p. 815