| Clue | Source | Date |
|---|---|---|
| Promise of a future return? | New York Times | 12 Apr 2024 |
| Words of appreciation | New York Times | 10 Mar 2023 |
| “Much obliged!” | New York Times | 06 Nov 2021 |
| "Thanks for the help, pal" | The New Yorker | 26 Aug 2019 |
| Grateful words to a favor granter | USA Today | 02 Dec 2018 |
| Grateful words to a favor granter | ||
| "Thanks! The next favor is on me!" | ||
| Grateful words | ||
| "Thanks, pal" | ||
| Grateful remark | ||
| "My treat next time!" |