| Answer | Crossword Clue |
|---|---|
| MARCONI | Pioneer in wireless telegraphy |
| LOOMIS | Pioneer in wireless telegraphy |
| MARCONI | 1909 Physics Nobelist for work in wireless telegraphy |
| MARCONI | Wireless telegraphy developer |
| MORSE | Telegraphy pioneer |
| MARCONI | Pioneer of telegraphy |
| MORSE | U.S. artist and telegraphy pioneer |
| ELISHA | Telegraphy pioneer and Oberlin professor Gray |
