Mayo Kaan (2 March 1914 – 9 July 2002) was a bodybuilder who claimed to be the original model for Superman.
His claims were denied by the estates of Jerry Siegel and Joe Shuster, the creators of the Superman series.
[3] An observer spotted an apparent inconsistency with Kaan's photos – one shows him on the steps of Hatch Memorial Shell in the Boston Esplanade, but this structure was not built in 1940, four years after he allegedly modeled for Shuster.
The previous year a similar promotion was for Buck Rogers where children could ride in a rocket ship and meet the characters.
as children rode in a rocket propelled by Superman, and had other adventures, ending up at the offices of the Daily Planet and receiving a copy of the newspaper with their names in the headline.