I think the problem, in part, IS that the life is too well documented. It is also too chaotically diverse. On this second point, the comparison to Henry James is pertinent. Though James's life presents complexity on complexity, Clemens's life presents several magnitudes greater complexity. Moral calculus can yield an equation that equals James; one needs human chaos theory to approximate Clemens, and that's before you bury him under Mark Twain. With Clemens/Twain, any true statement you could make based on strong evidence could be contradicted by several other statements based on equally strong evidence. Making sense out of this variety would take more than 20 or 30 years; it would be an Odyssey with no magical Phaecians to take your shipwrecked self home. Gregg