Biron was an adventurous champion from an era long ago, born a centaur, who was transformed into Comet the Superhorse and exiled from Earth-One. Upon his return to his home world in the 20th century, Comet became an ally of Supergirl on several cases, and found the means to transform back into a human. First as Bronco Bill Starr, he and Supergirl formed a bond that endured for years to come, although regrettably the effects were only temporary and once more he was transformed back into Comet. On Earth-Two, the Speedy of that world was sent back to the same era as Biron and was himself transformed into a centaur as well, before being rescued and brought back to the modern day by the Flash, Zatanna and Red Tornado. Like Speedy, Biron was known as an excellent archer, and when he would reappear as a human in the future he petitioned for membership into the Legion of Super-Heroes as Biron the Bowman alongside his shape-shifting ally Proty (under the identity of Blockade Boy) Although he would not obtain membership in that organization, he was a charter member of the Legion of Super-Pets that aided the teen heroes several times.
Then there was Biron the Bowman's counterpart, Alias the Spider. Originally Thomas Ludlow Hallaway, Tom was bored with his life as a rich playboy and donned his costumed alter ego to fight crime. However, in secret he was a sort of self-serving Robin Hood, using his archery skills to plunder the ill-gotten gains of criminals to help support his own lavish lifestyle. Aided by his chauffeur Chuck who drove his specially designed Black Widow which seemed to defy gravity, the pair carved out a career that evidently garnered the notice of Uncle Sam. Although the Spider didn't accept the call to attend the first meeting of the All-Star Squadron, Hallaway was enticed to join Sam in a journey from his native Earth-Two to the parallel planet of Earth-X to become one of the Uncle's Freedom Fighters. Perhaps feeling some sense of redemption, joining a task force to protect a world dominated by Nazis without native superheroes at that time, the Spider left behind both his awesome vehicle and his man-Friday and presumably perished later in that decade on a world though not his own.