Premise: Mary Marvel . Created by Otto Binder and Marc Swayze , she first appeared in Captain Marvel Adventures # 18 ( cover-dated Dec. 1942 ) . Otto Oscar Binder ( August 26 , 1911 -- October 13 , 1974 ) was an American author of science fiction and non-fiction books and stories , and comic books .
Hypothesis: Mary Marvel was created by an author of comic books.
Label: ENTAILMENT