Jean Guillaume Joseph Poswick
- Born on April 13, 1736
- Deceased on December 11, 1798, at the age of 62 years
Parents
- Jean Guillaume Poswick (1716 - 1782)
- Marie Elisabeth Chevalier (1711 - 1795)
Family
- Married on September 6, 1768, with Marie Dieudonnée Ramthum (1738 - 1779), issuing
- Bernard Adolphe Henri (1771 - 1828)
- Charles Lambert Yves (1773 - 1855)