KKK Day at the Ballpark?

Deadspin (h/t Cubs dad):

These four letters procured by Deadspin's house MLB archivist, Pete Nash, show that the Ku Klux Klan wrote polite letters and were extremely generous about their flower boquets. At least that was the case in 1924.

I like that they point out that the Knights of Columbus didn't provide as many bouquets as the Klan would provide.  I can hear the Klansman saying that it was because those foreigners were too poor and were always drunk.  I can't imagine that would have gone well in a town as Catholic as Cincinnati.