Mighty Youth
From superman.nu: Supermanica
Mighty Youth
When Jimmy Olsen is kidnapped by a renegade from the 30th century in a stolen Legion of Super-Heroes time bubble, he finds himself "The Red Headed Beatle of 1,000 B.C.!".
In the distant past he is befriended by a super-powerful teen, known as Mighty Youth, who was later revealed to be a youthful Samson (SPJO No. 79/3, Sep 1964: "The Red-Headed Beatle of 1,000 B.C.").