| Clue | Source | Date |
|---|---|---|
| Field trip safety measure | Newsday | 28 Sep 2019 |
| Safety strategy for children at camp | The Washington Post | 29 Jun 2016 |
| Method of pairing off for safety | Universal | 29 May 2015 |
| Method of pairing off for safety | ||
| Swimmers' safety precaution | ||
| *Pairing up for safety [the Clintons] | ||
| Singer Holly's method? | ||
| Scuba diving safety measure | ||
| Swimmers' safety precaution | ||
| Swimmers' safety precaution | ||
| Method of pairing off for safety | ||
| Practice of pairing swimmers |