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Marriage 28 July 1921 -- Groningen, Groningen, Groningen, NetherlandsMartha Spaak 
(I04767) Birth 4 November 1897 -- Groningen, Groningen, Groningen, Netherlands
Number of Children: 3 
Jan Schuringa 
(I06417)
Private
1 . 1Geertje Schuringa (I06418)
Private
1 . 2
1 . 3