Category:Gerard Johannes de Groot

**Gerard Johannes de Groot**
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Date of birth	5 February 1882; Rotterdam
Date of death	16 May 1950; The Hague
Country of citizenship	Kingdom of the Netherlands;
Occupation	teacher; biologist; military personnel;
Native language	Dutch;
Award received	Officer of the order Orange-Nassau (1938);
Authority file
	Q61945406;
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Media in category "Gerard Johannes de Groot"

The following 3 files are in this category, out of 3 total.