23-year-old Jay Garrick is caught in a lab accident and gains his speed force powers & becomes the Flash.
24-year-old Al Pratt first dons a strong man costume to fight crime as the Atom.
26-year-old Alan Armstrong becomes an active duty field agent.
29-year-old Iron Munro earns a second doctorate in quantum mechanics.
32-year-old Janos Prohaska & 26-year-old Stanislaus Drozdowski fight in the Spanish civil war for the communists.
17-year-old Roy Lincoln becomes a junior golden gloves boxer.
16-year-old Warren Griffith contracts lycanthropy.