There has never lived on this earth a person who could vouch 100% for the morals of his great great grandmother. No one knows what he is ethnically for certain except perhaps for some remote tribe and even then paternity is uncertain.
I know the names of all 8, of which only 2 were born in the US. For one of them I have a photo and know a fair amount about her--she had 12 children (of whom only 4 were still alive when she died). My great-aunt was 15 when she died and told me a number of stories about her...very old-fashioned and very religious, married at 17, not likely to have gotten into much mischief.