 Willem Dijkgraaf, son of David Dijkgraaf and Willemina Dedert.Born 27 Dec 1874 Heenvliet at 06:00 hour, died 08 Jun 1948 Rotterdam, 73 years. Occupation: sleepbootkapitein Married 01 Apr 1908 Rotterdam (40 years married) to:  Neeltje "Nelly" Offerman, daughter of Gerardus Martinus Offerman and Jannetje Kok.Born 11 Nov 1885 Hellevoetsluis, died 01 Mar 1962 Rotterdam, 76 years Children: 1. Wilhelmina "Willy" DijkgraafBorn 14 Aug 1908 Rotterdam, died 17 May 1996 Rotterdam, 87 years 2. Gerardus Martinus DijkgraafBorn 28 Oct 1909 Rotterdam, died 06 Aug 1915 Rotterdam, 5 years | |||