 Sietze David van der Werf, son of David Sytses van der Werf and Akke Ittes Roodhof.Born 5 Mar 1844 Koudum, died 10 Oct 1928 Sloten, age 84 years, buried Bakhuizen Married 9 May 1878 Gaasterland, age 34 years (married 50 years) to:  Johanneske Franks Zalmstra, age by marriage 25 years, daughter of Frank Joseph Zalmstra and Idskjen Lammerts de Jong.Born 19 Aug 1852 Mirns en Bakhuizen, died 21 Mar 1929 Sloten, age 76 years, buried Bakhuizen Children: 1. Frank van der WerfBorn 26 Apr 1887 Sloten, died 19 Apr 1972 Wolvega, age 84 years, buried Bakhuizen 2. David van der WerfBorn 30 Mar 1890 Sloten, died 4 Mar 1984 Koudum, age 93 years, buried Bakhuizen 3. Itte van der WerfBorn 21 May 1892 Sloten, died 11 Nov 1965 Sloten, age 73 years, buried Balk | |||