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SovietShooter posted on r/prowrestling3w
I did a search on the WrestlingClassics messageboard since I have a login there; Apparently he was part of a pretty popular "brothers" tag team - Ray & Bobby Stern. It looks like Bobby (Kanner) started using the "Mr America" name, while Ray went west to San Francisco where he apparently became an accomplished bodybuilder after wrestling. He wrote an autobiography in 1994 which is available to order on Amazon. Maybe there is more info about Kenner in there? Are you related to him in some way?