I am advised by the impeccable Derrick Goold of The St. Louis Post-Dispatch that the stretch of asphalt to be de-named after Big Mac (see lengthy tedious post below) and rechristened in honor of Mark Twain, had, long before Mac, been part of the Twain Expressway. So the great writer has not somehow been overlooked by Missouris Department of Transportation. Of course, this does mean that the DOT has gone back from McGwire to Clemens.