The members of the Marvel Family appeared both separately and together in many of Fawcett's comic book series, including "Whiz Comics", "Wow Comics", "Master Comics", "Captain Marvel Adventures", "Captain Marvel Jr.", "Mary Marvel", and "The Marvel Family". By the late 1940s, Marvel Family comics were among the most popular in the industry, and the Marvel Family had expanded to include both non-superpowered characters (Uncle Marvel and Freckles Marvel) and even funny animals (Hoppy the Marvel Bunny). By 1953, all of these books had ceased publication, due to Superman publisher DC Comics' lawsuit against Fawcett.