I am a member of the Ferry family, and was reading about my ancestors in a book called "Ferry Forebears" by Walker D. Ferry and found that I am a descendant of Thomas and Mary Barnes. I found a little in Grandma's cabin on a google search about Mary... but it basically only said that a little girl with epilepsy ( while having fits would claim that Mary, and two other witches were torturing her). It states that Mary denied being a witch, but they burned her anyway. If you find out any other information, please let me know.