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 Gerrit Koops
 Roelof Berend Koops- Grietje Zuur  (I09865) Birth 26 February 1901 -- Kolham, Slochteren, Groningen, Netherlands (I09865) Birth 26 February 1901 -- Kolham, Slochteren, Groningen, Netherlands
 Death 22 June 1959 (Age 58) -- Hoogezand, Hoogezand-Sappemeer, Groningen, Netherlands
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