Looking up "Valley Of The Living Dead", it was from 1/10/39, starring Bill Johnstone as Lamont Cranston. With Agnes Moorehead, probably her second season.
I power-listened, accelerated, to a chronological sort of my collection some years back, and what stood out was how the bad guys ended up. First by getting shot by the police, then by Old Sparky (death penalty), then by accident when fleeing...there's a progression on what happens to the "bitter fruit".
Also, I heard Orson Welles refused to rehearse which constantly stressed out the director. To add even more stress, one day Welles dropped his script on the floor just before live air, scattering the papers everywhere. As the director began to freak out, Welles pulled the real script from his jacket. Just a prank!
Somehow, when people think Shadow, they think Welles. Mostly I like the radio Gunsmoke and Nero Wolfe, but I think I’ll give the Shadow a closer look to clarify it.