| MARTHA | Name given to the last known surviving passenger pigeon, which died in 1914 (6) |
| GUSTAV | RAF pigeon which delivered the first news of the Normandy Landings on 20 (6) |
| ENDLING | What name applies to the last known individual of a species or subspecies? (7) |
| OED | Ref. work with a cutoff for entries of "words which died out before 1150" |
| CAT | The best-known surviving creature? (3) |
| RATS | The best-known surviving creatures? (4) |
| CATS | The best-known surviving creatures? (4) |
| CINCINNATI | The last known passenger pigeon died in 1914 in this American city's zoo |
| TUPELO | Mississippi site of Machine Gun Kelly's last known bank robbery |
| DEMASDUIT | Real name of Mary March, one of the last known survivors of the Beothuk culture of Newfoundland |
| REDDWARF | Sitcom whose central character, Dave Lister, is the last known human alive |
| OATES | I am just going outside and may be some time: were the last known words of Captain ___. (5) |
| EXTINCT | Description of a species no longer in existence, such as the dodo, woolly mammoth, western black rhinoceros or the passenger pigeon (7) |
| TENNIEL | John ?, English caricaturist noted for his political cartoons in Punch who died in 1914 (7) |
| CDIV | Year of the last known Roman gladiator competition |
| SARAJEVO | Where Archduke Franz Ferdinand died in 1914 |
| CAROL | First king of Romania, who died in 1914 (5) |
| DRURYLANE | Last known domicile of the muffin man (5,4) |
| TESLA | Electrical pioneer whose last known U.S. patent was for a helicopter-plane |
| LAE | New Guinea port that was Amelia Earhart's last known point of departure |
