 Ir. Cornelis Dijkgraaf, son of Cornelis Dijkgraaf and Jitske Bennink.Born 04 Mar 1928 Velsen, died 28 Oct 2008 Geleen, age 80 years, buried 03 Nov 2008 Hilversum, Algemene Begraafplaats. Occupation: dr. in de chemie Married 20 Jun 1953 Hilversum, age 25 years (married 55 years) to:  Janna Lena "Heleen" de Jongh, age by marriage 31 years, daughter of Leendert Johannes de Jongh Drs and Wilhelmina Johanna Verburg.Born 06 May 1922 Hilversum, died 14 Dec 2017 Geleen, age 95 years, buried 21 Dec 2017 Hilversum, Nieuwe Algemene Begraafplaats Children: 2. Dr. Leonore Corina "Leonore" DijkgraafBorn 23 Feb 1963 Heerlen, died 26 Jul 2016 Noordwijk, age 53 years, cremation 30 Jul 2016. Occupation: tandarts/research medewerkster Texas University Health Science Center | |||