| Clue | Source | Date |
|---|---|---|
| Cartoon train's sound | Universal | 13 Apr 2023 |
| Train sound (2 words) | Family Time | 05 Jun 2022 |
| Tot's train | Eugene Sheffer | 13 Jul 2020 |
| Track runner, to a tot | Wall Street Journal | 30 Apr 2020 |
| Sounds childish leaving station to say chew things over a couple of times | Irish Times Crosaire | 16 Nov 2016 |
| Sound bites featuring Thomas the Tank Engine? | The Times Cryptic | 04 May 2016 |
| 'Chattanooga ' | Eugene Sheffer | 21 Jan 2016 |
| Tot's toy on a track | ||
| Tot's toy on a track | ||
| Twain for children? | ||
| Tot's train | ||
| Chattanooga train | ||
| Thomas the Tank Engine, to tots | ||
| Chattanooga train | ||
| ... a toy train | ||
| Toy for tots | ||
| Steam-powered transport | ||
| Kid's train | ||
| Chattanooga train |