| Clue | Source | Date |
|---|---|---|
| Museum guides | New York Times | 01 Jul 2022 |
| Museum guides | Eugene Sheffer | 19 Aug 2021 |
| Museum guides | Thomas Joseph | 14 Jun 2018 |
| Museum guides | New York Times | 06 Mar 2018 |
| Museum guides | ||
| Museum guides | LA Times Daily | 25 Sep 2017 |
| Museum guides | The Washington Post | 25 Sep 2017 |
| Museum guides | ||
| They often provide illumination in galleries | ||
| Museum guides | ||
| Museum guides | ||
| Some lecturers | ||
| Museum workers | ||
| Tour guides | ||
| Guest lecturers | ||
| University lecturers | ||
| Tour guides | ||
| Lecturers | ||
| College lecturers | ||
| Teachers. |