| 2026-04-07 | Communication method with dits and dahs |
| 2024-05-01 | Inventor who might be described as dotty or dashing? |
| 2024-02-13 | ___ code |
| 2023-05-10 | Telegraph pioneer Samuel |
| 2023-05-02 | Man with a code |
| 2022-06-04 | Inspector of British fiction |
| 2022-04-22 | Name spelled with six dashes and six dots |
| 2019-12-18 | - - - - - .-. ... . |
| 2016-11-28 | Inventor of a "code" |
| 2014-04-06 | -- --- .-. ... . |
| 2014-03-30 | Inspector of crime fiction |
| 2014-01-09 | With 44-Down, "key" invention of the 1830s |
| 2012-09-23 | Inventor after whom a Yale residential college is named |
| 2010-09-20 | Man with a code |
| 2009-12-21 | Samuel with a code |
| 2009-09-09 | "What hath God wrought" sender |
| 2009-07-15 | Robert who won a Tony for "How to Succeed in Business Without Really Trying" |
| 2008-07-10 | Inspector of crime fiction |
| 2008-05-01 | ___ code |
| 2006-06-03 | Kind of alphabet |
| 2005-09-09 | Kind of alphabet |
| 2005-05-26 | Code name |
| 2004-12-27 | Telegraph pioneer |
| 2004-03-29 | Samuel with a code |
| 2001-11-23 | Code name |
| 2001-09-22 | Lewis's mystery-solving partner |
| 2001-08-26 | Tony-winning actor of 1962 and 1990 |
| 2000-12-29 | Inventor who inspired this puzzle |
| 2000-05-07 | Dotty inventor? |
| 1998-10-30 | "Tru" Tony winner |
| 1998-06-07 | Code name |
| 1998-05-03 | Code name |
| 1998-04-11 | Kind of signals |
| 1997-09-07 | Kind of alphabet |
| 1994-12-03 | 40's jazz-style singer Ella Mae |
| 1994-05-29 | Colin Dexter's inspector |
| 1993-12-14 | Code name |