Family history
Johan Magnus Jacobsz
Born in 1859
Born on 4 December 1859 in Afd. Semarang, Res. Semarang, Midden-Java, Nederlandsch-Indië.
Worked as Hoofdopzichter bij de Madoera Stoomtram Maatschappij.
Was married to Marie Albertine Hovestadt, Jacoba Marie Morel.