| Family Tree Collection | Main index A-Z | Total index | Names | Index places | Hakker | 
| Family page | 
| David Lens
 to: Jacomina Logcher | 
| 1) Naatje David Lens, birth 2 Jul 1896 Den Haag, died 8 Oct 1942 Auschwitz
 to: David Barend Hakker, birth 2 Aug 1896 Den Haag, died 30 Nov 1942 Middle-Europa, occupation: bookkeeper, waiter, son of Barend Jacob Hakker and Betje Moses Keijl |