Jaques Caillate was born on 20th July, 1658 in Geneva.
Henri Melly was born on 20th July, 1730 in Geneva.
Antoine-Frédéric Duhamel was born on 20th July, 1782 in Saint-Nicolas d'Aliermont.
Michel-Dominique Delépine was born on 20th July, 1790 in Saint-Nicolas d'Aliermont.
Adélaide Bloquet was born on 20th July, 1794 in Saint-Nicolas d'Aliermont.
Louis-Pascal Denis was born on 20th July, 1804 in Saint-Nicolas d'Aliermont.
Jean-François Viandier was born on 20th July, 1808 in Saint-Nicolas d'Aliermont.
Alexandre-Paulin Fournier was born on 20th July, 1815 in Saint-Nicolas d'Aliermont.
Marie-Madeleine Sellier was born on 20th July, 1815 in Les Grandes-Ventes.
Louis-Auguste Huguenin was born on 20th July, 1822 in Le Locle.
Charles-Auguste Louis Huguenin (Virchaux) was born on 20th July, 1840 in La Chaux-du-Milieu.
Joséphine-Irma Gosselin was born on 20th July, 1846 in Saint-Nicolas d'Aliermont.
Alberto Santos Dumont was born on 20th July, 1873 on the Fazenda Cabangu.
Theodor René Beyer was born on 20th July, 1926 in Zürich.