Captain Marvel (DC Comics) Comics" #21 (1941) introduced the Lieutenant Marvels: three other boys named "Billy Batson" who could also become adult superheroes. Captain Marvel, Jr., the alter-ego of disabled newsboy Freddy Freeman, debuted in "Whiz Comics" #25 (1941). Mary Marvel, alter-ego of Billy's twin sister Mary Batson, first appeared in "Captain Marvel Adventures" #18 (1942). In contrast to Captain Marvel and the Lieutenants, both Mary Marvel and Captain Marvel, Jr. remained kids in superhero form, and were given their own eponymous books in addition to appearing as the lead features in "Master Comics" and "Wow Comics", respectively. Captain Marvel, Captain Marvel Jr., and
Marvel Super-Heroes (comics) Marvel Super-Heroes (comics) Marvel Super-Heroes is the name of several comic book series and specials published by Marvel Comics. The first was the one-shot "Marvel Super Heroes Special" #1 (Oct. 1966) produced as a tie-in to "The Marvel Super Heroes" animated television program, reprinting "Daredevil" #1 (April 1964) and "The Avengers" #2 (Nov. 1963), plus two stories from the 1930s-1940s period fans and historians call Golden Age of comic books: "The Human Torch and the Sub-Mariner Meet" ("Marvel Mystery Comics" #8, June 1940), and the first Marvel story by future editor-in-chief Stan Lee, the two-page text piece "Captain America Foils