#kryptp

Superboy 89 was published with a cover date of June 1961. In the Superboy's Big Brother segment, Mon-El/Bob Cobb was introduced, created by Robert Bernstein and George Pap. Superboy helped Mon-El get his memory back to learn Mon-El was not actually his brother but an alien from Daxam that Jor-El had rescued from the destruction of Krypton. Superboy sent him to the Phantom Zone to sustain Mon-El's life after accidently poisoning him with lead. ("Superboy's Big Brother", "The Super-Cop of Smallville", Superboy 89, DC Comic Event)