Everybody is replaceable, Joe, but thanks for the kind words. Barry Cauchon called me the Iron Lady of our group the other day, but I told him I prefer to be called a Steel Magnolia - so we're sticking with that!
Back on topic: New books on Mr. Lincoln include Lincoln as Hero by Frank J. Williams and Lincoln and Medicine by Glenna R. Schroeder-Lein. I just received review copies from the University of Chicago Press yesterday, so can't tell you much about them yet.