| Clue | Source | Date |
|---|---|---|
| Doorkeeper guys | Newsday | 20 Oct 2024 |
| Entry-level jobs? | LA Times Daily | 24 Jan 2016 |
| Entry-level jobs? | ||
| Doorkeepers | ||
| Access controllers | ||
| Entries' sentries | ||
| Sentries | ||
| Guards | ||
| Some estate security workers | ||
| Some estate workers | ||
| Entrance protectors | ||
| Doorkeepers. | ||
| Grade-crossing guards. | ||
| Railway employes. |