| Clue | Source | Date |
|---|---|---|
| Welsh artist whose works include a 1919 portrait of TE Lawrence | The Times Specialist Sunday | 13 Nov 2022 |
| Welsh artist, by the 1920s considered Britain’s leading portrait painter | The Times Specialist Sunday | 21 Aug 2022 |
| Welsh artist, a leading British portraitist in the 1920s | The Times Specialist Sunday | 29 Nov 2020 |