- Cornelis Roos
Death - 31 May 1912 (100 year anniversary) - Sloten, Sloten, Noord-Holland, Nederland - Herman Heinrich Josephus Hulselmans
Birth - 31 May 1908 (104 year anniversary) - Rotterdam, Rotterdam, Zuid-Holland, Nederland - Hendrikus Duijshart
Birth - 31 May 1861 (151 year anniversary) - Rotterdam, Rotterdam, Zuid-Holland, Nederland - Joseph Veltman
Birth - 31 May 1849 (163 year anniversary) - Sneek, Sneek, Friesland, Nederland
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