| Clue | Source | Date |
|---|---|---|
| Ball Park Franks holders | LA Times Daily | 10 Aug 2025 |
| *Frank holders | LA Times Daily | 11 May 2021 |
| *Frank holders | The Washington Post | 11 May 2021 |
| Holders of frankfurters | Premier Sunday | 30 Oct 2016 |
| Concession stand supply | Wall Street Journal | 10 Nov 2015 |
| Concession stand supply |