Back in March, I posted a notice of the article  "Authors as Copyright
Campaigners: Mark Twain's Legacy," by Catherine Seville, appearing in
Journal of the Copyright Society of the USA (Vol 55, no's 2-3,
Winter-Spring 2008) , pp 283-360.

A second article about MT appears in the following (current) issue of
the same Journal, Vol 55 No. 4). It is entitled "Difficult Clients and
Clashing Affidavits: The Prince and the Pauper Litigation," by William
H. Manz (pp 623-641). The "other" litigant was Edward Howard House.

DDD