Catty1 guessed it!

The quote is:

To call him a dog hardly seems to do him justice, though, inasmuch as he
had four legs, a tail, and barked, I admit he was, to all outward
appearances. But to those of us who knew him well, he was a perfect
gentleman.

Herione Gingold

(The spelling of her name is as I used in the book I got the quote from, but
from what I can find on the Internet, it is "Hermione" - my apologies for any confusion this caused.)

Letters available:
CDFJLNPQVXYZ

Almita - A(20) I(10) T(13) H(14) U(7)=101
koxka - E(19) W(6)=44
Roxyluvsme13 - O(14) S(11) G(6) M(7)=52
Catty1 R(7) B(2)=9