For the most part, comic strips are created by people who are mainly known for creating comic strips. The lay person who is not well-versed in comic strip history may not even know the names of the creators of most of the comic strips they read, and if they do know them they don't know them for anything else. There are, however, some comic strips that were created by people who were famous for other, entirely unrelated things. Sometimes this is because they had a personal interest in creating a comic strip and in doing something different from what they had been doing. Other times it's because a newspaper syndicate wanted a big name in order to promote their new feature.
Such is the case with Dashiell Hammett.
Hammett is mainly known for his novels about hard-boiled detectives (a term supposedly coined by Tad Dorgan) such as The Maltese Falcon and The Thin Man. If you haven't read him, you certainly know the Humphrey Bogart version of his character Sam Spade from the movies. This was popular stuff in the 2…