 Leonardus Hendrikus "Leo" Dijkgraaf, son of Leonardus Hendrikus "Leo" Dijkgraaf and Cornelia Maria "Corrie" de Coo.Born 23 Jun 1934 Pijnacker, died 06 Jun 2013 Maasland, 78 years. Occupation: kantoormachinehandelaar Married to:  Name Withheld, daughter of Anthonius Marie "Anton" van Riet and Petronella Anthonia Wilhelmina "Nel" Gordijn. PRIVACY FILTERChildren: | |||