| Clue | Source | Date |
|---|---|---|
| Puff-puffs (4-5) | ||
| Toddlers' trains | The Washington Post Sunday | 07 Jan 2018 |
| Tots' trains | New York Times | 22 Oct 2015 |
| Trains, to tots | USA Today | 26 Mar 2015 |
| Trains, to tots | ||
| Tots' trains | ||
| Trains, to tots | ||
| Trains, to toddlers | ||
| Trains, to tots | ||
| Trains, to tots |