My biggest historiographic shock of 2002/2003 was discovering that in Frederick, MD, there are lots of things named after the late Chief Justice Roger Taney, including public assistance housing.
And so, as you drive through town, you see black Americans coming and going from houses prominently marked "TANEY." For me, it is still a show stopper, and I can't help but gawk.
I associate Taney completely with the adverse Dred Scott decision as well as (is this folklore?) a legal decision that no ex-slave could ever become an American citizen.
The Washington Times has noticed the world capital of Taneymania and has written a nice little article about political and historiographic issues surrounding his house in Frederick.