| 2025-05-13 | Sagan of astronomy |
| 2024-11-15 | With 39-Across, scientist for whom a Cornell research institute is named |
| 2023-01-22 | Astronomer Sagan |
| 2022-11-25 | Psychologist Jung |
| 2022-08-17 | Fast Lewis |
| 2020-12-14 | Sagan who hosted TV's "Cosmos" |
| 2020-05-09 | ___ Laemmle, film pioneer who co-founded Universal Pictures |
| 2020-04-20 | Astronomer Sagan |
| 2019-09-23 | Baseball Hall-of-Famer Yastrzemski |
| 2018-06-07 | Baseball legend Yastrzemski |
| 2017-05-01 | Cosmologist Sagan |
| 2016-12-12 | Sagan who hosted "Cosmos" |
| 2014-08-21 | Friend of Homer on "The Simpsons" |
| 2013-04-15 | Astronomer Sagan |
| 2012-09-30 | Lenny's friend on "The Simpsons" |
| 2012-07-18 | Psychologist Jung |
| 2011-11-02 | Astronomer Sagan |
| 2011-09-22 | Hall-of-Famer Yastrzemski |
| 2011-02-13 | Co-worker of Homer on "The Simpsons" |
| 2010-04-04 | Real first name of Alfalfa of the Little Rascals |
| 2009-12-08 | Baseball player Yastrzemski |
| 2009-09-23 | Psychologist Jung |
| 2006-09-17 | Missing from 13-Down |
| 2006-04-18 | Director Reiner |
| 2005-10-17 | Sagan or Sandburg |
| 2005-05-31 | Psychologist Jung |
| 2005-01-20 | Rob Reiner's father |
| 2003-10-27 | Track star Lewis |
| 2003-04-13 | Songwriter Perkins |
| 2002-09-26 | Sagan of "Cosmos" |
| 2002-06-29 | Vikings great Eller |
| 2000-10-02 | Perkins who sang "Blue Suede Shoes" |
| 2000-03-23 | Cosmologist Sagan |
| 2000-03-12 | Director Reiner |
| 2000-01-24 | Poet Sandburg |
| 1999-11-14 | Screwballer Hubbell |
| 1999-01-12 | Baseball's Yastrzemski |
| 1998-08-23 | Perkins who wrote "Blue Suede Shoes" |
| 1998-05-16 | Columnist Rowan |
| 1998-05-03 | One of the Reiners |
| 1998-04-09 | Reiner of TV |
| 1997-03-03 | Poet Sandburg |
| 1996-12-25 | Sagan of "Cosmos" |
| 1996-09-29 | Journalist Bernstein |
| 1996-05-25 | 31-Across's first name |
| 1996-01-22 | Runner Lewis |
| 1995-10-30 | Columnist Rowan |
| 1994-05-11 | Baseball's Yastrzemski |
| 1994-04-10 | Runner Lewis |