Family history
Johan Magnus Jacobsz
Also known as "Jan"
Born in 1827
Born on 1827 in Afd. Semarang, Res. Semarang, Midden-Java, Nederlandsch-Indië.
Worked as Clerk at the Office of the Public Prosecutors at the Court of Justice in Samarang; Official on half-pay..
Was married to Paulina Justina de Calonne.