That is a very interesting article, thanks for passing it along. I notice a lot of times in the census pages that names are spelled incorrectly. That info is only as good as the transcriber. I was told, by my grandmother that lived with us all my early life, (until she passed) that if I see a relative's name spelled "Yarborough" it is because they changed it..the actual spelling of her birth name and her father's is "Yarbrough". I just don't understand why people change their name spelling. In my whole Mahaney line, when I look, it has one man that spelled his "Mahanay". It can go astray easily.