- Johanna Suzanna van der Plaat
Death - 21 April 1907 (64 year anniversary) - Arnhem, Gelderland, Nederland - Anna Tuma
Birth - 21 April 1906 (65 year anniversary) - Chadron, Dawes County, Nebraska, United States of America - Anna Margaretha LeÃner
Birth - 21 April 1896 (75 year anniversary) - Bad Windsheim-Külsheim, Bayern, Deutschland - Everdina Welles
- Maria Eva Kamper
Death - 21 April 1819 (152 year anniversary) - Wegberg-Rickelrath, Nordrhein-Westfalen, Deutschland - Maria Catharina Schmidt
- Margaretha Charlotta Rings
Death - 21 April 1807 (164 year anniversary) - Düsseldorf-Kalkum, Nordrhein-Westfalen, Deutschland - Magdalena (unknown)
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