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Jacob De Valenca, birth 10 Jan 1864 Amsterdam, Holland, son of Imanuel Valenca and Betje De Jong
Married 30 Dec 1888 Amsterdam, Holland to: Goedje Batavier, birth ONG 1867 |
| 1) Emanuel Valenca, birth 16 OKT 1889 Amsterdam, Holland, died 7 MEI 1943 Sobibor, Poland |
| 2) Meyer Valenca, birth 10 Aug 1891 Amsterdam, Holland |
| 3) Samuel Valenca, birth 23 Jan 1899 Amsterdam, Holland, died 21 Jan 1945 Blechhammer, Germany |