Wheee. Obama's descended from slaveholders. Whoop-de-friggin'-do. I'd be willing to bet that at least 80% of all American blacks are descended from slaveowners. The only novelty in Obama's case is that the lineage is from his white, American mother, and not the father from which he gets the pigmentage which makes him "black" by racemongering standards. The discovery of slaveowning ancestors probably gives his "blackness" more cultural credibility.
I haven't found any evidence of direct-ancestor slaveowners, but some of the New York Thorns in the richer, Episcopalian families were. The New Jersey line we're descended from were modest country folk, and were lucky if they owned land, let alone other people.
Via K.J. Lopez at the Corner.