| Clue | Source | Date |
|---|---|---|
| First pope to broadcast on radio | Universal | 08 Feb 2019 |
| First pope to broadcast on radio | ||
| 1930s pope | Newsday | 14 Dec 2018 |
| 1930s pope | ||
| Pre-WWII pope | ||
| Benedict XV's successor | ||
| Pope when Vatican City became independent | ||
| "Divini Redemptoris" author |