Re: Kenealy's fat boy.  Dr. Edward Kenealy was the counsel for Arthur
Orton, the Tichborne Claimant.  Apparently, Orton was somewhat obese.

    See MARK TWAIN'S NOTEBOOKS AND JOURNAL, Vol. I, pg. 546 n36 for

also of possible interest:

>From UCAL:

Kenealy, Arabella.
   Memoirs of Edward Vaughan Kenealy, LL.D., by his daughter Arabella
   Kenealy. With photogravure portrait and sixteen illustrations.  London,
   Long, 1908.
       UCB   Law Lib   KD631.K45 K45

>From Harvard:

AUTHOR: Roe, Michael, fl. 1965-
TITLE: Kenealy and the Tichborne cause : a study in mid-Victorian
          populism / Michael Roe.
PUB. INFO: Melbourne : Melbourne University Press ; Portland, Oregon : ISBS
                Inc., 1974.
DESCRIPTION: xiii, 255 p. : ill. ; 23 cm.
SUBJECTS: *S1 Kenealy, Edward Vaughan Hyde, 1819-1880.
          *S2 Orton, Arthur, 1834-1898.

Hope this helps fill in the blanks.