Sensational Successors of Sandmen Sufficiently Skilled

Jeb Paulsen was a lad with a strange history who would became a legend over a century after his birth. As a young orphan with a propensity to dream, he was drawn into the world of the Sandman, the self appointed protector of the Dream Dimension where nocturnal realities are conceptualized. As a mentor to Jeb, Sandman soon realized that Jeb was displaced in time and belonged in a future era. The boy was then sent by Sandman to the 21st century, where he was raised under the loving care of his adoptive "grandfather" Buddy Blank aka Omac. 

After Buddy died, Tommy then lived in an orphanage,  until he was adopted by Horatio Tomorrow and his wife. This lad grew up to become the Planeteer known as Tommy Tomorrow. Armed with a special pistol and futuristic equipment, it was his physical prowess and keen problem solving aptitude that made him a fine example as a guardian amongst his peers... much like his counterpart a universe away and decades earlier than Tommy's date of birth.

On that parallel world of Earth-Two, Jed's doppleganger was John.... Jonathan Law. Novelist John Law conceived of the ideal source material for his next great story, a behind the scenes publication of costumed crusaders appearing in the early 1940s. Law interviewed the girlfriend of the mystery man known as Sandman. Following the interview, the woman... Dian Belmont... handed Jonathan a drawing of a new spandex outfit she had designed for her boyfriend, believing that Law would appreciate it more. 

Indeed, Jonathan wore a fabricated replica of her handiwork, and as Tarantula when he encountered Dian once more, while she was substituting for Sandman on a case. Sadly, her duel with some crooks led to her perishing in a car crash, with Tarantula and Sandman having witnessed this tragedy. Armed with his web-shooting pistol and equipped with suction cup boots, his acrobatic agility and mental ingenuity made Law a capable hero, fighting in memory of Dian.

Back on Earth-One, through some interaction with Supergirl, Jeb ended up in the future and would in one timeline be the warrior lad known as Kamandi yet in the actual future would become the aforementioned Tommy Tomorrow. As an ace graduate, Tommy was the premier member of the Planeteers which protected the Solar System from various threats. He would return to the 20th century on a few occasions such as when combatting time lost dinosaurs, assisting fellow heroes who were "showcasing" their abilities versus an alien treat, and during the Crisis on Infinite Earths.

John Law was already experienced in battling crime in his previous professions such as law enforcement (chronicled in More Fun Comics #21-44 from June 1937 to June 19, 1939), then his second career blending his experience in law with his knowledge of science (chronicled in Smash Comics #3-12 from October 1939 to July 1940). Still restless and unsatisfied with his previously occupations, Law tried his hand an author, which led to a profitable path to fame and fortune. 

This culmitated in his fourth "career" as costumed crusader (in Star-Spangled Comics #1, beginning in October 1941) as the Tarantula. As Tarantula, Law was successful as both a solo adventurer and a member of the All-Star Squadron. His various experiences side by side with superheroes allowed him to research his literary masterpiece, Alter Ego, after which he retired from alter ego in April 1943.