| Clue | Source | Date |
|---|---|---|
| Napa vintner Robert | Newsday | 05 May 2022 |
| Napa Valley vintner Robert | New York Times | 13 May 2018 |
| Napa Valley vintner Robert | ||
| California vintner Robert | ||
| Almaden competitor | ||
| "Harvests of Joy" autobiographer | ||
| "Harvests of Joy" autobiographer | ||
| Almaden competitor |