| Clue | Source | Date |
|---|---|---|
| *Drywall material | LA Times Daily | 15 Aug 2021 |
| *Drywall material | The Washington Post | 15 Aug 2021 |
| Drywall material | LA Times Daily | 15 Dec 2020 |
| Drywall material | The Washington Post | 15 Dec 2020 |
| Drywall brand | Eugene Sheffer | 18 Sep 2020 |
| Drywall brand | Wall Street Journal | 02 Mar 2016 |
| Kind of plasterboard | ||
| Brand of drywall | ||
| Kind of plasterboard |