 Folkert Sinnema, son of Hans Sinnema and C Visser.Born Jul 1917 Warga, died 20 Apr 1974, age 56 years Married to:  Annie Alves, daughter of Gerlof Alves and Aalet Catharina Bruning.Born 19 Jun 1923, died 18 Apr 1998 Drachten, age 74 years, buried Drachten | |||