| Clue | Source | Date |
|---|---|---|
| 50th anniversary gift for a fast-food worker? | The Washington Post | 12 Mar 2020 |
| 50th anniversary gift for a fast-food worker? | LA Times Daily | 12 Mar 2020 |
| Panner's lucky strike | USA Today | 09 Jun 2018 |
| Panner's lucky strike | ||
| Panner's discovery | USA Today | 25 Aug 2017 |
| Panner's discovery | ||
| Forty-niner's find | USA Today | 05 Nov 2016 |