There is no need to take exception. The examples are "actual" examples of words as they were stated. I lived in the North Georgia Mountains for several years working as a nurse. These phrases were used by most, in spite of education. Many of the people I worked with were college educated. I believe it is a cultural difference that many are very proud, and choose to continue using. None of these mispronunciations were "Yankee invented". I don’t believe how "far south" is the determining factor. There are many areas that are fairly isolated that have very strong local dialects, as in the mountains and barrier islands. I also found the farm areas of central Indiana to be an excellent example.