Thomas jefferson had a slave named sally hemmings. She was one quarter black and three quarters white, but the rules of the time dictated that she was. Jefferson's wife dies at 33 years old, leaving him in a grief,. apparently, because she didn't want her children to have a stepmother. And so when they have children together, wright, jefferson's it wife's father and his slave, they are one quarterblack and three quarter white. Now this isn't even the part that blows my mind yet. The fact that she's the half sister of jefferson’s now dead wife is because jefferson's now dead