- Willibald Gerthoffer
Death - 20 April 1899 (114 year anniversary) - Burnhaupt-le-Haut, Haut-Rhin, Alsace, France - Ernest Kuntz
Birth - 20 April 1876 (137 year anniversary) - Battenheim, Haut-Rhin, Alsace, France - Catherine Gerthoffer
Death - 20 April 1871 (142 year anniversary) - Burnhaupt-le-Haut, Haut-Rhin, Alsace, France - Cécile Fuchs
Birth - 20 April 1826 (187 year anniversary) - Schweighouse-Thann, Haut-Rhin, Alsace, France - Anne-Marie Waller
Death - 20 April 1822 (191 year anniversary) - Burnhaupt-le-Haut, Haut-Rhin, Alsace, France - Marie Agathe Abeck
Birth - 20 April 1793 (220 year anniversary) - Guewenheim, Haut-Rhin, Alsace, France - Anne-Barbe Hirth
- Catherine Freudenreich
Birth - 20 April 1722 (291 year anniversary) - Eguisheim, Haut-Rhin, Alsace, France Death - 20 April 1722 (291 year anniversary) - Eguisheim, Haut-Rhin, Alsace, France
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