 Jacob Dijkgraaf, son of Izak Cornelis Dijkgraaf and Maaike Blommers.Born 26 Aug 1915 Rotterdam, died 20 Apr 1989 Vlaardingen, 73 years. Occupation: magazijnmeester Wilton Feijenoord/havenarbeider/verfspuiter Married 04 Sep 1952 Schiedam (36 years married) to:  Petronella Verbruggen, daughter of Willem Verbruggen and Adriana van Oosten.Born 01 Jun 1913 Vlaardingen, died 18 Sep 1999 Vlaardingen, 86 years, 1st marriage (divorced) to: Antoon Hubert Verkoeien, 2nd marriage to: Jacob Dijkgraaf | |||