The teenage Last Son of the Planet Viro, possessing super-strength, speed, and limited invulnerability, arrived on Earth inside a meteor in
Quality's National Comics #1 (1940).
Though he came to Earth in his teens, he never referred to his family or life on Viro.
He wore civilian attire from time to time, but he
didn't have a secret identity, and everybody called him "Wonder Boy" no matter how he was garbed!
Since he was created and owned by the
Eisner/Iger Studio, which "packaged" stories and art for publishers, he and other
Eisner/Iger characters (like studio mate
Phantom Lady) would be leased to
other publishers when contracts weren't renewed, or if the characters' rights were purchased by the client and continued by in-house staff, as was the case with
Blackhawk,
Uncle Sam, among others at
Quality.
In
Wonder Boy's case, he bounced from
Quality to
Elliot, then to
Ajax-Farrell, who published this particular tale in
Terrific Comics #16 (1955).
BTW, this tale
may be a re-working of a previously-published comic story, which
Eisner/Iger was notorious for, as shown
HERE, where a story written and drawn for one character was modified/updated for a
totally-different character!
Or, it may be a
totally-new tale.
We're not yet certain.