Trivia Tuesday: A Heroic Teenager

     It's Tuesday.  You know what that means, time for more trivia.  First, last week's answer: The park to which I am referring to is Chopin Park, located in the Portage Park community on the city's northwest side.  And now, this week's question:

On July 6, 1881, 200 people almost died in a train crash near Moingona, Iowa.  Who was responsible for their salvation? (and what in the world does this have to do with Chicago?)

     As always, make sure to check back next week for the answer, as well as the next question.  Happy sleuthing!