I remember watching him on tv in early 60s when home sick from school
amazing guy
I’ve seen him in clips. American fitness man.
He came after the “boxing a kangaroo” generation of these guys. Not being any sort of expert, I would think he was maybe one of the first modern type trainers.
Jack was a pioneer in bringing health and fitness to the masses and the feats he accomplished well into advanced age was just incredible.
A very uplifting and inspirational man.