There was Bill Cummins, a young Texan who won the NATs in 1956 or so, I've photographed the Walker Trophy up close to see Bill's engraved name.
George Aldrich, at one of the VSCs, told me, in his opinion, Bill was the best flyer to ever pick up a handle, in any event. Bill Cummins and Gene Hempel were very close friends and flew all over Texas and Louisiana in the mid/late-fifties.
I watched Bill fly speed a lot. He looked like Elvis Presley with a Hell Razor with a Dooling 61 in his hands rather than a guitar. Bill died in an industrial accident at an automobile plant in Arlington, Texas, way before his time.
dg
EDIT: I Just called Riley and he said he didn't have a "Gambler", his plane was the "Texan". He recalled Bill Cummins won the '56 NATs with a Nobler.
EDIT 2: Here's three VSC guys and the Old Time "Gambler"