| Date | Person | Description |
|---|---|---|
| 1770 – | Pickel, Ignaz | Teacher of mathematics, physics, astronomy in Dillingen an der Donau |
| Pickel, Ignaz | Occupied himself with astronomy, meteorology, forestry, topography, vehicular dynamics | |
| Soares, Diogo | Occupied himself with astronomy, cartography, geography, natural sciences, botany, topography, fieldwork |