Want to celebrate St. Valentine’s and history? Check out the
Encyclopedia of Chicago entry that includes at least one great photo.
If you want to do a little primary research, you can have a look at some of the earliest coverage of the massacre, including a summary of the police records of all the victims in The Chicago Tribune Historical. You can go farther with the primary source of the Trib. If you want to explore some more of this history, have a look at the long list of articles available using the search term: Moran Gang.