It wouldn't have taken but Corn Pop himself, if he actually existed, to have taken the chain from Joe, tied it around his waste and to a concrete block, then tossed him into the pool.
I've heard that "Corn Pop" did indeed, exist, but I've seen no credible verification of Gropin' Joe's self-aggrandizing story.
For those who have never witnessed Joe talking about Corn Pop (and his own hairy legs), here's the full speech:
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