In his note on "copyright battles and Mark Twain's ancestors," Larry Marshburne uncovered an error in _Mark Twain A to Z_. The correct maiden name of Mark Twain's maternal grandmother should be Pamelia (or Pamela or Parmelia) Goggin. The entries on John M. Clemens and Pamela Clemens Moffett incorrectly state that her name was Pamelia Moorman (this correct name is given in the entry on Samuel B. Clemens). "Moorman" was the maiden name of Pamelia Goggin's mother, Rachel Moorman, who married Stephen Goggin. I appreciate having this inconsistency called to my attention. I expect _Mark Twain A to Z_ to be reprinted next year, so I would like to invite forum members to alert me to any other problems they find in the book. Thanks, Kent Rasmussen