The Becky Thatcher House is part of the package tour of Mark Twain-related buildings in downtown Hannibal. It includes period furnishings, but more importantly it is designed to let you walk through childhood life in the 1800s from the perspective of one of four of the main characters in Tom Sawyer.
This was a very nice museum and there were plenty of hands-on things that kids could relate to as well. The information was presented in a way that was easy to follow. Lots of pictures and sounds to go along with the tour. I would recommend stopping here for sure!