I remember going to Boot Hill in Dodge City in 1959, 1972, and 1979, and I think it was free back then. I remember a museum that may a charged a small fee. I remember the old hanging tree, which may have been artificial. I also remember some kind of schoolhouse exhibit in the 1979 trip. Sadly, I may never pass that way again.
Why is Liberal, KS, called "Liberal"?
It has nothing to do with politics. When the town was first established or the first settlers moved in, they gave water away for free which was apparently uncommon at the time.
In other words they were "Liberal" with their water.
That is the story on one of their brochures many years ago.