http://blog.al.com/scenesource/2011/01/auburn-montgomery_professor_al.html
Rare article that actually does the bizzare action of talking to the editor and publisher about what they did!
http://www.newsouthbooks.com/twain/introduction-alan-gribben-mark-twain-tom-sawyer-huckleberry-finn-newsouth-books.html
Actual Intro from the book.