@sozobe,
Oh, this reminds me: Once upon a time in the legal forum, when I vigorously defended a particular dissent by Supreme Court justice Clarence Thomas, joefromchicago himself wondered whether "Thomas" is my first name or my family name. Given that Joe is the beacon of A2K reasonableness, so, undoubtedly, is David's question.
... and everybody knows that Martin Luther King is a direct descendant of Martin Luther, too.