Descendancy for Jan Willem Cornelis van Heek

1938 - (86 years)

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1 Jan Willem Cornelis van Heek ^[1] b. 4 Oct 1938
- Margaret Gisela Amelie van Lynden b. 27 Jan 1943
  - 2 Elisabeth Francisca Florentine van Heek ^[1.1] b. 9 May 1968
    - + Seger Emmanuel van Voorst, Baron b. 25 Dec 1961