| Clue | Source | Date |
|---|---|---|
| Building inspectors | The Times Specialist Sunday | 02 Feb 2025 |
| People who look very sour must change and start to smile | ||
| People who mark property lines | Newsday | 16 Sep 2019 |
| Land measurers | Thomas Joseph | 21 Dec 2015 |
| They measure angles with theodolites |