| Clue | Source | Date |
|---|---|---|
| 'Shh!' | USA Today | 05 Dec 2019 |
| Teacher's 'Shh!' | The Washington Post | 02 Apr 2018 |
| Teacher's "Shh!" | LA Times Daily | 02 Apr 2018 |
| Teacher's "Shh!" | ||
| 'Shh!' | New York Times | 14 Jan 2017 |
| "Shh!" | ||
| 'Hush!' | Eugene Sheffer | 06 May 2016 |
| Classroom reminder | ||
| Librarian's request. |