I'm moving this up from "Today's Word" because, since I somehow got recruited to re-enact Mr. Booth three years ago (that's a whole nother story, folks) I've researched all facets of his character heavily. And, so, triggered my his mention in Monday's word I'm doing this for my own intrigue. I learned of the true source of the "your name is mud/your name will be mud" phrase in the mid-80's...it was indeed, a minor revelation,
but I forgot, and can't find it again.  I can validate that Dr. Mudd's attending to Booth's broken leg after the assassination was 
NOT the true source, although that historical scenario has usurped its origin in many people's eyes. But the origin of the phrase goes back much further than that.  Looking for the true source. Here's the Booth/Dr. Mudd refutation.
from http://www.word-detective.com/100297.html 
                   Mud on the superhighway.
                   Dear Word Detective: I've searched the entire World Wide Web looking for the origin of the
                   phrase "Your name will be mud." I think it might have come from the name of the doctor
                   who
                   treated John Wilkes Booth (Dr. Mudd, I presume). -- Jerry McFadyen, via the Internet. 
                   Searched the whole web, eh? Well, by now I'm sure that you've come to the same
                   conclusion
                   that I reached a while back, namely that if you're looking for solid, useful information on
                   the
                   Internet, you're barking up the wrong medium. There are exceptions, to be sure, but in
                   general trying to do serious research on the web is akin to asking a housecat for help with
                   your homework. Someone needs to explain this to Al Gore. 
                   Thank heavens for books, therefore, especially ones such as "Devious Derivations," written
                   by Hugh Rawson and published by Crown. Mr Rawson devotes an entire page in his book to
                   the theory you have evidently heard: that the phrase "Your name will be mud" is
                   connected
                   somehow to the Dr. Samuel A. Mudd who treated President Abraham Lincoln's assassin,
                   John Wilkes Booth. Doctor Mudd may or may not have been in on the 1865 assassination
                   conspiracy with Booth, who had broken his leg escaping from the scene of his crime. In
                   any case, Mudd was convicted of conspiracy in the trial that followed, and his name, to the
                   general public, certainly became "mud" in the sense of the phrase -- despised and reviled. 
                   But Doctor Mudd's name is certainly no more than an interesting coincidence, for it cannot
                   have been the source of the phrase. "Mud" had already been in use for more than 200
                   years, since at least 1708, as a slang term for a fool. According to Christine Ammer, in                    her book "Have A Nice Day -- No Problem!" (a very fine dictionary of cliches published by                          Plume), "mud" was commonly applied in the 19th century British Parliament to any member                         who lost an election or otherwise disgraced himself.
                   The Phrase Finder also validates this:
                   http://phrases.shu.ac.uk/meanings/424000.html(also see the "Booth the Mummy" thread on Misc. for some something very intriguing, and weird) 
