x. 27-12-1905, Wageningen (GE)
*. 16-11-1881, Rotterdam (ZH)
~.  
†. 1938-1947, Nice (F)
[ ].  
ali.  
Beroep. chemist
 
*. 20-9-1882, Bandoeng (NI)
~.  
†. 26-4-1943, Wageningen (GE)
[ ].  
ali.  
Beroep. ass. proefstation