 Wopke Posthumus, son of Gerrit Hielkes Posthumus and Maria Bruinsma.Born 8 Oct 1877 Workum, died 5 Apr 1917 Amsterdam, age 39 years Married 20 Oct 1904 Amsterdam, age 27 years (married 12 years) to:  Berdina Christoffels, age by marriage 36 yearsBorn 6 Apr 1868 Amsterdam, died 11 Mar 1958 Amsterdam, age 89 years | |||