Jean-Jaques Ducommun-dit-VernonAge: 55 years1756–1811
- Name
- Jean-Jaques Ducommun-dit-Vernon
| Birth | assumed parentage by place and date 1756 27 |
| Death of a sister | Madelaine Ducommon-dit-Vernon October 19, 1787 (Age 31 years) |
| Occupation | also 1783 (apprentice?) between 1805 and 1811 (Age 49 years) |
| Death | August 23, 1811 (Age 55 years) |
| Family with parents |
| father |
Abram-Louis Ducommun-dit-Vernon Birth: estimated as close to sibling(s) — 1729 27 |
| elder sister |
Madelaine Ducommon-dit-Vernon Birth: 1750 21 — La Chaux-de-Fonds, Neuchâtel, Switzerland Death: October 19, 1787 — La Chaux-de-Fonds, Neuchâtel, Switzerland |
|
7 years himself |
Jean-Jaques Ducommun-dit-Vernon Birth: assumed parentage by place and date — 1756 27 Death: August 23, 1811 — La Chaux-de-Fonds, Neuchâtel, Switzerland |
|
-1 years elder brother |
David Ducommun-dit-Vernon Birth: assumed parentage, estimated as close to sibling(s) — about 1754 25 — La Chaux-de-Fonds, Neuchâtel, Switzerland |