 Cornelis Johannes "Cor" Dijkgraaf, son of Pieter Volbrecht Dijkgraaf and Dirkje Oudwater.Born 07 Sep 1909 Rotterdam, died 15 Dec 1999 Rotterdam, age 90 years, cremation 20 Dec 1999 Rotterdam, crematorium Rotterdam-Zuid. Occupation: kantoorbediende/schrijver/loodsbaas Married 08 Feb 1933 Rotterdam, age 23 years (married 32 years) to:  Helena "Lena" Kroon, age by marriage 24 years, daughter of Machiel Kroon and Pieternella Philipse.Born 11 Mar 1908 Rotterdam, died 18 Feb 1965 Rotterdam, age 56 years Children: | |||
| 2nd marriage/ relation Cornelis Johannes "Cor" Dijkgraaf, son of Pieter Volbrecht Dijkgraaf and Dirkje Oudwater. Married/ Related to: | |||