I can't be sure, but I think there's one in a book with a title
similar to "The Pictorial Mark Twain," or "The Pictorial Biography of
Mark Twain."  I'm afraid my copy is about 1,000 miles away right now,
so I can't check on it to be sure.  I bought the book at
the Greenfield Village book store several years ago, so I don't know
if it's in print at the moment...

    Hoping this helps a little,

            Matthew Miller