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
Captain Marvel Jr. one designated Earth-5. As a result of Marvel Family foe Mister Mind eating aspects of this reality, it takes on visual aspects similar to the pre-"Crisis" Earth-S, including the Marvel Family characters. The names of the characters are not mentioned in the panel in which they appear, but a character visually similar to Captain Marvel Jr. appears. Based on comments by "52" co-author Grant Morrison, this alternate universe is not the pre-Crisis Earth-S. Freddy Freeman first appeared in issue 13 of this book; he was shown crippled and in a wheelchair, the result of being inadvertently injured in a previous