Category:Harco Theodorus Hora Siccama

**Harco Theodorus Hora Siccama**
	Dutch hydraulic engineer
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Date of birth	9 August 1842; The Hague
Date of death	1 October 1921; The Hague
Country of citizenship	Kingdom of the Netherlands;
Occupation	hydraulic engineer;
Noble title	Jonkheer;
Family	Siccama;
Father	Otto Willem Hora Siccama;
Authority file
	Q121032745; ISNI: 0000000393511012; VIAF ID: 287757092
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