Isaac Jacob Jacques van Witsen - van Embden Born ± 1878 The Hague, Netherland. Son of Isidore van Witsen - de Jong and Keetje van Embden - Landing Landen Married to: Rosa Johanna Wilhelmina Blok - de Winter Born 25-6-1885 Nijmegen, Netherland. Daughter of Samuel Blok and Helena Winter Children: | |
1) Leo van Witsen - BlokBorn after 1909 | |
2) Maurits van Witsen- BlokBorn after 1910 |