| SAMUELMORSE | American portraitist and inventor who developed an electric telegraph (6,5) |
| EDISON | Thomas _, late American inventor who developed an early electric lightbulb (6) |
| MORSE | Samuel ---, American inventor of an electric telegraph code (5) |
| JOHNSHELTON | Self-styled 'Orator Regius' to Henry VIII, who developed an eponymous poetic metre based on colloquial speech (4,7) |
| ISAACSINGER | US inventor who developed the first commercially successful sewing machine in 1851 (5,6) |
| NIELSRYBERGFINSEN | Who developed an ultra-violet ray lamp for the treatment of tuberculosis of the skin and won the Nob |
| HANSGEIGER | German physicist who developed an instrument for detecting radiation (4,6) |
| BOHR | Niels who developed an atomic model |
| SALK | Jonas, US virologist who developed an injected vaccine against poliomyelitis (4) |
| ALICEBALL | Early-twentieth-century chemist who developed an early treatment for leprosy |
| PASTEUR | French bacteriologist who developed an anthrax vaccine |
| ALAN | Turing who developed an AI test which he called "The Imitation Game" |
| GEIGER | Hans -, German physicist who developed an instrument for detecting radiation (6) |
| GRAY | Elisha ---, American inventor who developed a telephone prototype and an early music synthesizer (4) |
| THOMASEDISON | American inventor who developed the phonograph and the electric light bulb (6,6) |
| PEALE | Early American portraitist of Washington, Hamilton, and Jefferson |
| FENDER | Leo, U.S. inventor who developed the first mass-produced electric guitar (6) |
| GERARD | Trained at the studio of Jacques- Louis David, portraitist and court painter to Napoleon I and later Louis XVIII and Charles X (6) |
| RAEBURN | Painter who was appointed portraitist and limner to George IV in Scotland (7) |
| HOLBEIN | Hans ?, portraitist and court painter to Henry VIII who died in 1543 |
