 Nicolaas Leo Silvius, son of Lieuwe (Leo) Silvius and Jantje Schaper.Born 29 May 1912 Sneek, died 13 Apr 1991 Groningen, age 78 years Married 22 Oct 1945 Groningen, age 33 years (married 40 years) to:  Helena Henderika Jozephina Maria Wortelboer, age by marriage 36 yearsBorn 5 Jul 1909 Groningen, died 23 Mar 1986 Groningen, age 76 years | |||