- Eldon Joseph Urban
- Joseph Urbanovsky
- Randall Ray Snow
- Charles George Sabata
Birth - 21 April 1921 (75 year anniversary) - David City, Butler County, Nebraska, United States of America - Gradus Damen
Death - 21 April 1913 (83 year anniversary) - Tiel, Gelderland, Nederland - Marion Wallace Powers
Birth - 21 April 1883 (113 year anniversary) - La Ser, Wisconsin, - Mathias Damen
Death - 21 April 1859 (137 year anniversary) - Lingewaard-Bemmel, Gelderland, Nederland - Hendrik Kouwens
Death - 21 April 1856 (140 year anniversary) - Groesbeek, Gelderland, Nederland - Gradus Albers
Birth - 21 April 1832 (164 year anniversary) - Groesbeek, Gelderland, Nederland - Engelbert George van der Plaat
Birth - 21 April 1824 (172 year anniversary) - Antwerpen, Antwerpen, Belgique
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