- Cornelis Roos
Death - 31 May 1912 (101 year anniversary) - Sloten, Sloten, Noord-Holland, Nederland - Herman Heinrich Josephus Hulselmans
Birth - 31 May 1908 (105 year anniversary) - Rotterdam, Rotterdam, Zuid-Holland, Nederland - Hendrikus Duijshart
Birth - 31 May 1861 (152 year anniversary) - Rotterdam, Rotterdam, Zuid-Holland, Nederland - Joseph Veltman
Birth - 31 May 1849 (164 year anniversary) - Sneek, Sneek, Friesland, Nederland
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