 Abraham Jan Dijkgraaf, son of Jan Dijkgraaf and Aplonia Lidewij Lagendijk.Born 02 Dec 1911 Rotterdam, died 20 Oct 1990 Rotterdam, age 78 years. Occupation: schoonmaker/betonarbeider/havenarbeider Married 14 Mar 1934 Rotterdam, age 22 years (married 37 years) to:  Maria Cornelia Muller, age by marriage 20 years, daughter of Cornelis Muller and Adriana Ackermans.Born 12 Jan 1914 Rotterdam, died 14 Jan 1972 Rotterdam, age 58 years Child: | |||