34 isn't old for a boxer; maybe made Pender him to retire, but they were not much different in age (Basilo won shortly before the Middleweight crown). Robinson continued to box for another 4 - 5 years, perhaps longer than Pender. Pender was lineal champion and it by the NYSAC (& NBA), but it wasn't as far as I know about Tiger, but Fullmer, who competed for the vacant title (NBA). Whatsoever Papp didn't need a second or third fight to win against Jones and Müller (who won twice vs. Giardello), while Giardello lost at any point during his career against average boxers (he had no long winning streak), not only when he was past his best, but also before he earned a title already. When Robinson lost against Jones, he became later several times world champion again; he defeated after that Olson, Turpin, Basilo and Fullmer among others. So he seemed to have left a lot (was not over the hill) at the time of the Jones defeat. Lesnevich and Risko were light-heavyweights, Overlin and Apostoli were fringe-contenders (maybe Dundee barely too), the rest is not worth to mention. Papp defeated at least 6 of these category, as I have proven several times.