Aa all probably knew, John Isaacs was (and still is, as he is alive) the brother in law of Reg Park. He was already a bodybuilder when Reg met him in 1951. It was Isaacs that want his sister, Mareon and Reg met some months before the mr universe 1951. Reg came from Haway, and he got a tan look that surely love Mareon, but that is another history...
John Isaacs came to live with the Park's new marriage only few week after their wedding, one year after the mr universe, and Reg began to train Isaacs in what would be famous "the Reg Park way". Four years later, John became mr universe, and two years later, the two brothers in law became they two winners in his class of the 1958 contest, as you can see in this link of our forum:
http://forum.regpark.eu/index.php?topic=154.0Isaacs was famous for his supreme back development, that you can see in one of this pics: