Marsh created and both drew and wrote Dan Dunn from one of the first all original comic book in 1933 and then the Conic Strip until 1942.

Dan Dunn Detective Dan: Secret Operative No. 48 (1933), cover art by Norman W. Marsh. Publication information Publisher Humor Publishing First appearance Detective Dan: Secret Operative No. 48 (1933) Created by Norman W. Marsh Dan Dunn is a fictional detective created by Norman W. Marsh. He first appeared in Detective Dan: Secret Operative No. 48, a proto-comic book from 1933 produced by Humor Publishing. He subsequently appeared in newspaper comic strips from 1933 to 1943.

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