| Family Tree Collection | Main index A-Z | Total index | Names | Index places | Alexander Duparc Collection |
| Family page |
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John Ralph van Zwanenberg, birth 1918, died 1962, son of Isaac (Ies) van Zwanenberg and Dorothy Lydia Sax
to: Desmond Groves, died Feb 2007 added by Peter van Zwanenberg |
| 1) Peter van Zwanenberg |
| 2) Jane van Zwanenberg |
| 3) Nigel van Zwanenberg |