The only reason I know who that is is because of a guest appearance he made on The Flintstones (a carton which continued to be widely aired and was popular during my own childhood - didn’t learn until later the show was as old as my parents). Oddly, he was a celebrity that they did not alter the name to sound more like a citizen of Bedrock and used his normal name Hoagy Carmichael (as opposed to “Carmichaelstone” or something like that).
https://www.youtube.com/watch?v=EL640BZPSsg
I remember that episode!.........................Yeah, I’m old........................
My favorite was Ann Margrock