In Act 2 of “The Reclaiming of Madison Hemings,” a Charles Smith play that is a good deal more visceral than its academic title suggests, a character named Madison Hemings, played at American Blues Theater by Jon Hudson Odom, screams the name “Sally Hemings” like he’s Marlon Brando screaming “St-ell-aaaa!” The circumstances are, of course, very different in this drama set on the grounds of ...