- Charles George Sabata
Birth - 21 April 1921 (4 year anniversary) - David City, Butler County, Nebraska, United States of America - Gradus Damen
Death - 21 April 1913 (12 year anniversary) - Tiel, Gelderland, Nederland - Johanna Suzanna van der Plaat
Death - 21 April 1907 (18 year anniversary) - Arnhem, Gelderland, Nederland - Anna Tuma
Birth - 21 April 1906 (19 year anniversary) - Chadron, Dawes County, Nebraska, United States of America - Anna Margaretha LeÃner
Birth - 21 April 1896 (29 year anniversary) - Bad Windsheim-Külsheim, Bayern, Deutschland - Marion Wallace Powers
- Mathias Damen
Death - 21 April 1859 (66 year anniversary) - Lingewaard-Bemmel, Gelderland, Nederland - Hendrik Kouwens
Death - 21 April 1856 (69 year anniversary) - Groesbeek, Gelderland, Nederland - Gradus Albers
Birth - 21 April 1832 (93 year anniversary) - Groesbeek, Gelderland, Nederland - Engelbert George van der Plaat
Birth - 21 April 1824 (101 year anniversary) - Antwerpen, Antwerpen, Belgique - Everdina Welles
- Maria Eva Kamper
Death - 21 April 1819 (106 year anniversary) - Wegberg-Rickelrath, Nordrhein-Westfalen, Deutschland - Maria Catharina Schmidt
- Margaretha Charlotta Rings
Death - 21 April 1807 (118 year anniversary) - Düsseldorf-Kalkum, Nordrhein-Westfalen, Deutschland - Magdalena (unknown)
| - Christiaan Fransen + Johanna Frederika de Wilde
Marriage - 21 April 1881 (44 year anniversary) - Rheden, Gelderland, Nederland - Carl Friedrich Deppermann + Wilhelmine Schorn
Marriage - 21 April 1858 (67 year anniversary) - Düsseldorf-Hubbelrath, Nordrhein-Westfalen, Deutschland - Peter Leonard Vangansewinkel + Maria Lucia Zörren
Marriage - 21 April 1849 (76 year anniversary) - Wegberg, Nordrhein-Westfalen, Deutschland - Joannes Wilhelmus van Bisselick + Anna Henriette van der Plaat
Marriage - 21 April 1848 (77 year anniversary) - Den Helder, Noord-Holland, Nederland - Joannes Zöeren + Elisabetha Wolfs
Marriage - 21 April 1817 (108 year anniversary) - Niederkrüchten, Nordrhein-Westfalen, Deutschland - Paul Meid + Maria Elisabeth Sattler
Marriage - 21 April 1810 (115 year anniversary) - Andernach, Rheinland-Pfalz, Deutschland - Mathias Aerns + Mathilde (Mechtildis) Ogmans (oder Aegmans,Aimans)
Marriage - 21 April 1769 (156 year anniversary) - Kevelaer-Wetten, Nordrhein-Westfalen, Deutschland
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