| Answer | Crossword Clue |
|---|---|
| MRX | Man of unknown identity |
| MRX | Guy of unknown identity |
| ELISE | Beethoven title woman (whose identity is unknown) |
| BIRTHMOTHER | Her identity may be unknown to an adoptee |
| mysteries | A person or thing whose identity or nature is puzzling or unknown |
| CARREL | Author of "Man, the Unknown." |
