| Family Tree Collection | Main index A-Z | Total index | Names | Index places | Hakker | 
| Family page | 
| Jonas Velmans
 to: Carolina Polak | 
| 1) Isaac Jonas Velmans, birth 16 Nov 1893 Amsterdam, died 21 May 1943 Sobibor living Amsterdam, occupation: coster
 to: Rebecca Hijman Hakker, birth 1 Aug 1895 Amsterdam, died 21 May 1943 Sobibor living Amsterdam, daughter of Hijman Abraham Hakker and Sientje Elkan de Klijn |