 Derk Willem Dijkgraaf, son of Gerrit Jan Dijkgraaf and Willemina "Mina" Sanders.Born 13 Nov 1868 Epe, died 03 Mar 1930 Rotterdam at 11:00 hour, 61 years, buried Rotterdam; grafno. 725. Occupation: koopman in oud roest en ongeregelde goederen Married 20 Mar 1895 Amsterdam Divorced 30 Jul 1912 Rotterdam (17 years married) from:  Elisabeth van Doorn, daughter of Cornelis van Doorn and Geertruida Maria Dikhout.Born 14 Dec 1877 Amsterdam, died 12 Sep 1940 Schiedam, 62 years Children: 1. Wilhelmina DijkgraafBorn 19 Sep 1895 Amsterdam, died 25 Feb 1915 Rotterdam, 19 years 2. Carolina Henriëtta DijkgraafBorn 11 Dec 1896 Amsterdam, died 06 Jan 1915 Overschie, 18 years. Occupation: dienstbode 3. Martha Maria DijkgraafBorn 08 Dec 1898 Amsterdam, died 28 Apr 1936 Rotterdam, 37 years, buried 02 May 1936 Rotterdam, Algemene Begraafplaats Crooswijk 4. Geertruida DijkgraafBorn 30 Nov 1900 Amsterdam, died 10 Apr 1935 Leiden (Waarsch. Ac.Ziekenhuis), 34 years | |||