Mad: I never knew that. I only ever saw the NWT at the Kingdom hall (Except for the library.) I was born in 78 so probably too late
Doug: Friedman tried. He really did. He identified the Yahwist and general duteronomists. I know there are two layers of duteronomist editing. Also Priestly editing finalized it all. I'm working on the earliest version at the moment. (I have already done the Elohist)