The cards relate to Halloween. Houdini died on Halloween in 1926. Poe's stories are read by tens of thousands of high schoolers at this time of year.
I snagged the images from the Library of Congress, and used Paint dot Net and Google's Picasa to manipulate the images. I chose the name of "American Classics" because it could cover many different topics. But the banner looks like the backside of the French flag. And yes, Houdini was born Hungarian. But he did quite a bit of showmanship in the US. I'm claiming him.
Just something fun while waiting for Game 3 of the World Series.