Barb Schmidt has it on _www.twainquotes.com_ (http://www.twainquotes.com)
as from "Papers of the Adam Family."

Here's the link:

_http://www.twainquotes.com/Country.html_
(http://www.twainquotes.com/Country.html)

Also, you might check out Howard Baetzhold's and
Joseph B. McCullough's:
    The Bible According to Mark Twain    Published 1995
University of  Georgia
Press

Here's a lengthy link that should take you to  it:

_http://books.google.com/books?id=alwwjSjlHwUC&pg=PA88&lpg=PA88&dq=%22in+a+m
on
archy+the+king+and+his+family+are+the+country%22+quotations&source=web&ots=B
ei
EySMVif&sig=C4_FSzSRUJiJfbWuk2IY_eKe2ss#PPA87,M1_
(http://books.google.com/books?id=alwwjSjlHwUC&pg=PA88&lpg=PA88&dq="in+a+mon
archy+the+king+and+his+family+
are+the+country"+quotations&source=web&ots=BeiEySMVif&sig=C4_FSzSRUJiJfbWuk2
IY
_eKe2ss#PPA87,M1)

Best regards,

Roger  Durrett