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man‎Pieter "Piet" Dijkgraaf‏‎, son of Jan Dijkgraaf and Elisabeth Schalk‏.
Born ‎11 Dec 1934 Rotterdam, died ‎10 Jul 2008 Gouda‎, 73 years

Married ‎03 Mar 1960 Rotterdam (IJsselmonde) (48 years married) to:

womanSonja Beukers‏
Born ‎18 Jun 1936 Barendrecht, died ‎09 Jun 2017‎, 80 years

Children:

1.
manName Withheld‏ PRIVACY FILTER

2.
womanName Withheld‏ PRIVACY FILTER