I'm aware of the controvery surrounding Mourning being a Lewis. I heard that she was Indian because of the name Mourning, but this name was used by parents in that time. This would tend to shelve the Indian idea based upon using that name. I've never heard the surname "Pigg" being used though. What was your source on this theory. Unless shown otherwise, I will use the name Lewis because the evidence leans more to that theory than others. Robert Adams had associations with the Lewis and Woodson families then.
Have you found information on John and Nancy Adams we corresponded about in June of this year?