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Max Abraham Kohnstamm, birth 1836, died 1905, occupation: bankier Volgens Mak groeide Prof Philip Kohnstamm op bij zijn oom, de bankier A.C. Wertheim to: Rosalie Therese Sarah Wertheim, birth 1834 Amsterdam, died 1922 1st marriage 2nd marriage, daughter of Carel Wertheim and Dientje Dinah van Minden |
| 1) Dinah Elisabeth Kohnstamm, birth 21 Aug 1869 Amsterdam, died 24 Sep 1942 Monowitz, occupation: Kunstschilderes |
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2) Prof Philipp Abraham Kohnstamm, birth 17 Jun 1875 Bonn, died 31 Dec 1951 Ermelo, occupation: Prof Pedagogie Amsterdam
Married 30 Jun 1903 to: Johanna Hermana (An) Kessler, birth 1882, died 1968, daughter of Jean Baptiste August Kessler and Margaretha Jacoba Johanna de Lange |