#HappyBirthday #writer #JerrySiegel #TeenagerFromCleveland whoAft 1st conceivingMalevolent #LexLuthor-like precursor coCreated #comicsNo1Superhero #Superman also #SlamBradley #DoctorOccult #TheSpectre #StarSpangledKid #TriplicateGirl #BouncingBoy #Brainiac5 #ChameleonBoy #PhantomGirl #MatterEaterLad