Half black man. His father was european and his mother was a black slave. Though he may be socially/culturally black, he was genetically half white. But I don't

Half black man. His father was european and his mother was a black slave. Though he may be socially/culturally black, he was genetically half white. But I don't expect much integrity from the atlantic. That out of the way, it is biologically and statistically impossible to recreate a person's DNA that far back because every generation, a portion of an ancestor's genes are lost. You get about 50% of your mother's genes and 50% of your father's genes. Also, you didn't need to "reconstruct" a portion of the maternal genome to find out the lineage. All you needed was the X chromosome of one of the descendents to get an idea of where the slave ancestor came from. Beyond that, you don't really need a DNA test since most slaves in the americas came from west africa - predominantly nigeria/cameroon/benin region.