| Izaac Gokkes (1864 - 1938) |
|
| Catharina Tas (1861 - 1922) |
| Joseph de Liever | Anna Gokkes |
| b. 28 Apr 1878, Amsterdam, Nord-Holland, Netherlands d. 21 Sep 1942, Auschwitz-Birkenau (Oswiecim) Camp, Katowice, Poland. bur. occ. edu. rel. |
b. 24 May 1890, Amsterdam, Nord-Holland, Netherlands d. 21 Sep 1942, Auschwitz-Birkenau (Oswiecim) Camp, Katowice, Poland. bur. occ. edu. rel. |
| Catharina de Liever Sophia de Liever |