If he was a spy I think Kitty would have had an "accident" and he would dissapear to some government bunker and be forced to work in total seclusion the OSS and the old CIA were not like their modern p***ified liberal equivalents they didn't f*** around.
I was a kid in those days, very differnt than these. Those things wouldn't have happened, a public figure. Not likely.
Ping to GrampaDave, kid needs a fifties pespective.