 Petrus Johannes Nicolaas "Piet" Dijkgraaf, son of Petrus Johannes Nicolaas Dijkgraaf and Catharina Johanna Brouwers.Born 25 Sep 1907 Rotterdam, died 16 Oct 1980 Rijswijk, age 73 years. Occupation: etaleur/verkoper Married 08 Aug 1934 's-Gravenhage, age 26 years (married 39 years) to:  Petronella Johanna "Nel" van de Luitgaarden, age by marriage 26 years, daughter of Petrus van de Luitgaarden and Johanna Adriana Kwaaitaal.Born 27 Sep 1907 's-Gravenhage, died 14 Mar 1974 Rijswijk, age 66 years Children: 3. Johannes Adrianus Petrus "Hans" DijkgraafBorn 18 Feb 1947 's-Gravenhage, died 23 Jul 2010 's-Gravenhage, age 63 years, cremation 29 Jul 2010 's-Gravenhage, Gemeentelijke Begraafplaats Westduin. Occupation: Oprichter en directeur Woonpartners BV | |||