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Heijo Willem Hemmen 
(I13877) Birth 16 April 1916 -- Musselkanaal, Onstwedde, Groningen, Netherlands
Death 26 December 1998 (Age 82) -- Emmen, Emmen, Drenthe, Netherlands
Number of Children: 1 
1 . 1- Private
Pietertje Kamstra 
(I13879)
Private
Number of Children: 3