| Clue | Source | Date |
|---|---|---|
| Some D.C. landmarks | Thomas Joseph | 29 May 2023 |
| Tangible tributes | Thomas Joseph | 28 May 2022 |
| Statues, often | LA Times Daily | 09 Feb 2016 |
| Statues, often | ||
| Some sites on the National Mall | New York Times | 18 Oct 2015 |
| Some sites on the National Mall | ||
| Some anniversary events | ||
| Historic tourist sites |