Who was Nietzsche's genealogist?

Nietzsche's Genealogy of Morals is deservedly part of the ethical canon, but it is also enormously and insistently absent-minded. I'm going to first present, as a textual puzzle, a handful of forgetful moments in the first two essays of the Genealogy. To address the puzzle, I will take up a familiar idea, that the Genealogy is both a subversive account of ethics and of what it is to be an intellectual. I will describe a strategy for reading the text that makes these out to be differently and more closely connected than they are usually taken to be.