People in the scientific professions and inventors.
C
- Chalmers, James (Scottish, 1982-1853, Postal reform)
F
- Faraday, Michael (English, 1791-1867)
H
- Hill, Rowland (English, 1795-1879, Postal reformer, educator)
O
- Olmsted, Denison (American, 1791-1859, Astronomy and Physics)