Well, duh.
I would guess that most of our Founding Fathers and many that came thereafter have biracial descendants from having been slave owners. This is no surprise to me, but I can see some conservative groups having a hissy fit about this…It muddies the gene pool for women that belong to Daughters of the American Revolution for instance. I don’t think they even allow Blacks among their ranks. I’m sure they’ll demand a retraction…Too bad DAR, you can’t rewrite history.