I have used DNA to prove relationships. DNA verified that people I suspected were my relatives WERE related to me, and I was able to triangulate to prove how. I have selectively approached relatives, to answer my questions. DNA proved my great great grandfather was another African slave and NOT the white slaver. DNA showed that my 4 great grandmother came from the Angola area, and I am close to finding out whether she (who was born in the 1770s) is the person who was stolen, or find her mother. I will keep tracing until I find the ship my ancestress was brought here on. It can be done.