 Alphonsus Gerardus Posthumus, son of Gerrit Hielkes Posthumus and Maria Bruinsma.Born 20 Jul 1887 Amsterdam Married 18 May 1910 Amsterdam, age 22 years to: | |||
| Alphonsus Gerardus Posthumus, son of Gerrit Hielkes Posthumus and Maria Bruinsma. Born 20 Jul 1887 Amsterdam Married 18 May 1910 Amsterdam, age 22 years to: | |||
