Author Jack Lessenberry (archivist Elizabeth Zerwekh) will be a keynote speaker at the Court Historical Society Luncheon on November 17th.  Mr. Lessenberry's most recent book celebrates Avern Cohn's  extraordinary 70-year legal career and is called  Thinking About the Other Fella: Avern Cohn's Life and the Law.    It includes a biographical narrative, and an intense