My head is spinning. I’m watching a documentary on PBA, Klansville USA. The film focuses briefly on a 1965 Klan march in Salisbury, North Carolina. A commentator appears on screen, a black man who was a police officer at the time — Price Brown Jr. I have never met him, or his mother or father or siblings or children, but I recognize the name immediately. He is my third cousin, once removed, the great-great-grandson of my matrilineal ancestor, Margaret McConnaughey.