Found a little more info.
Lloyd Cox won the S/SA class at Indy, in '61. I assume it was the same car that his wife Carol drove the next year, to S/SA wins at Pomona & Indy.
In '62, Lloyd won SS/SA at the Winter Nats. Hayden Proffitt also won the SS/S class, as well as the already mentioned A/FX class. And Jess Tyree won the S/S class. Don Bennett won A/SA.
I'll remind ya'll once again, at that time, all these classes were considered "Top Stock", NOT Super Stock.
At Indy, Dick Jesse was RU to Lloyd Cox, in A/FX. In S/S, Arlen Vanke won & Bob Harrop was RU. Ralph Hardt won A/SA.
At the '63 Winter Nats, Bill Shrewsberry won A/FX. Think I posted a pic but didn't know the name. Lloyd Cox won B/SA, which I assume was in the Junior Stock class.
At Indy, Jim Wangers won B/FX, in a Royal Pontiac Swiss cheese Cat. Bill Abraham won A/SA. All these cars had either 389 or 421 Pontiac power.
'63 was the year Mopar jumped into drag racing big time. And many of the Pontiacs were not allowed to run in some of the lower classes, because not enuff of the SD cars had been sold. So, Mopar began to dominate many classes. Most all here are very familiar with the 413's, & the 426 Wedge & Hemi cars. In my humble & biased opinion, some of those Mopars were some of the ugliest quick cars ever on a drag strip. But, to Mopar fans, I'm sure they did & still do look good.
In '64, Don Gay won A/S at the Winters & at Indy. Mopars & 427 Fords won everything else, above A/S. Don't know about the lower classes in Junior Stock. Haven't found a source for that info yet.