Emma's full name was Nancy Emily Blalock. She was known as Emma. My grandmother (also your great-grandmother) always thought Emma was part Indian. To date there is no proof of that. I am just getting to her side of the family in my in-depth search. As soon as I know more I will let you know. My e-mail is firstname.lastname@example.org if we commnicate that way, I can share more information with you.