Dating of "mud flap"?

[Arnold M. Zwicky]

On Jul 12, 2005, at 8:59 AM, Jonathan Lighter wrote:

> I find over 9,000 Googits for "Thoreauvian," which I once saw in a
> book.  Later I used it in a seminar paper, so mellifluous it was.
> The professor ridiculed me out of ever using it again; "Thoreauan"
> was said to be correct.
>
> "Thoreauan" gets 419 hits.
>
> There is now even an _Angry Thoreauan_ magazine.

ick.  AHD4 lists *only* "Thoreauvian".  ditto OED2.  that's good
enough for me.

arnold, reminded of the rather more outrageous Montague/Montagovian