| Samuel Adelaar (1829 - 1882) |
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| Wilhelmina Jeanette Salomon Stibbe (1831 - 1878) |
| Abraham Duveen | Helena Adelaar |
| b. 25 Jun 1864, Zwolle, Overijssel, Netherlands d. 22 May 1944, Auschwitz-Birkenau (Oswiecim) Camp, Katowice, Poland. bur. occ. edu. rel. |
b. 18 Aug 1866, Zurenborg, Antwerpen, Belgium. d. 13 Apr 1905, Amsterdam, Nord-Holland, Netherlands bur. occ. edu. rel. |
| Maurits Duveen Willem Duveen Siegfried Duveen |