Jean-Pierre Barral was born on 12th May, 1752 in Geneva. Jean-Baptiste Forestier was born on 12th May, 1760 in Saint-Nicolas d'Aliermont. Jean-Charles Croutte was born on 12th May, 1786 in Saint-Nicolas d'Aliermont. Hans Biswanger was born on 12th May, 1788. Marie-Justine Deschamps was born on 12th May, 1794 in Saint-Nicolas d'Aliermont. Dominique Delaporte was born on 12th May, 1797 in Saint-Nicolas d'Aliermont. Georges Frédéric Maillard-Salin was born on 12th May, 1825 in Beaucourt. Marguerite Rosalie Maillard-Salin was born on 12th May, 1825 in Beaucourt. Henri-Achille Denis was born on 12th May, 1841 in Saint-Nicolas d'Aliermont. Nicolai Willem Hohwü was born on 12th May, 1874. Alfred-Jules Auzout was born on 12th May, 1875 in Saint-Nicolas d'Aliermont.
Jules Ducommun-dit-Tinnon died on 12th May, 1852 in Geneva. Victorine-Joséphine Dehame died on 12th May, 1865 in Saint-Nicolas d'Aliermont. Armand-François Collin died on 12th May, 1895.