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Jacob Constantijn Helmolt - Ontify
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Jacob Constantijn Helmolt
3 Jan 1783 Haarlem - 9 Mar 1862 Haarlem.
Statements about
Jacob Constantijn Helmolt
Instance Of
Sex or Gender
Child
Father
Mother
Human
Male
Mr. Daniël Adolf Camerling Helmolt
Mr. Jacob Helmolt
Anna Petronella Gerlings
