Historical clue formulations

• Biographer Leon — 2020-05-21
• Leon ___, Henry James biographer — 2016-10-23
• 1963 Pulitzer winner Leon — 2014-08-22
• Pulitzer-winning biographer Leon — 2014-06-26
• Leon who won a Pulitzer for his biography of Henry James — 2012-09-30
• Henry James biographer — 2012-01-27
• Biographer Leon — 2011-04-19
• Henry James biographer Leon — 2009-07-04
• Pulitzer-winning biographer Leon — 2009-01-15
• Writer of the five-volume biography "Henry James" — 2008-12-06
• Pulitzer-winning biographer Leon — 2008-05-13
• Writer of a five-volume Henry James biography — 2008-01-12
• Leon who won both a Pulitzer and a National Book Award in 1963 — 2007-11-10
• Biographer Leon — 2007-03-25
• Henry James biographer Leon — 2006-07-18
• "James Joyce" author Leon ___ — 2001-01-28
• Henry James biographer Leon — 1999-10-21
• Pulitzer-winning biographer Leon — 1998-08-09
• Noble, in Nuremberg — 1998-03-01
• Pulitzer-winning biographer Leon — 1996-11-16
• Cather biographer Leon — 1995-04-25
• 1963 Pulitzer biographer Leon — 1995-02-06