Timeline Chart
 
	
	1904--	
	
		
1908--
		
1920--
		
1932--
		
1939--
		|   | Birth--11 July 1909 - Helpman, Haren, Groningen, Netherlands | 
|   | Marriage--25 January 1934 - Groningen, Groningen, Groningen, Netherlands (Age 24) | 
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	|   | Birth--11 July 1909 - Helpman, Haren, Groningen, Netherlands | 
|   | Marriage--25 January 1934 - Groningen, Groningen, Groningen, Netherlands (Age 24) | 
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