According to the Michigan State University Comic Art Collection index, Doc Savage #10 included a 7-page origin of a superhero called The Thunderbolt (aka Dr. Adams). The story involved a scientific princess and time travel, but the hero was never heard from again. (Maybe he/she is lost in time.)
With the aid of the mystic powers of Princess Ione, mistress of scientific wonders. . .

Variants

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  1. “The Thunderbolt” by Rafael Astarita, in Doc Savage Comics 10, November 1942.
    2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by Rafael Astarita