| Clue | Source | Date |
|---|---|---|
| Noise-free Amtrak offering | Eugene Sheffer | 28 Aug 2024 |
| 'Library-like' section of an Amtrak train | New York Times | 04 Jul 2023 |
| Place for Amtrak passengers to unwind ... and a hint to how to interpret eight puzzle answers | LA Times Daily | 07 Nov 2021 |
| Train area where talking is rude | Universal | 06 Mar 2021 |
| Noise-free Amtrak offering | Eugene Sheffer | 22 Jul 2020 |
| * 'No noise allowed' Amtrak area | Premier Sunday | 02 Oct 2016 |
| Amtrak unwinding area | LA Times Daily | 05 Mar 2016 |