- Helena Hendrika Pieternella Dolk
Death - 20 February 1922 (4 year anniversary) - Rotterdam, Rotterdam, Zuid-Holland, Nederland - Maria Adriana Cornelia van der Kaaden
Birth - 20 February 1880 (46 year anniversary) - Den Haag, Den Haag, Zuid-Holland, Nederland - Adriana Maria de Groot
Death - 20 February 1873 (53 year anniversary) - Tilburg, Tilburg, Noord-Brabant, Nederland - Helena Jacoba Takke
Birth - 20 February 1851 (75 year anniversary) - Houten, Houten, Utrecht, Nederland
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