
 1876 - 1922  (46 jaar)
 1876 - 1922  (46 jaar)
| George R. de Groot | |
| G: | 30 dec 1898 | 
| Grand Rapids, Kent, Michigan, Amerika | |
| O: | 17 jan 1921 | 
| Grand Rapids, Kent, Michigan, Amerika | |
| 
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| Pieter de Groot | |
| G: | 2 feb 1876 | 
| Kollumerland | |
| O: | 15 okt 1922 | 
| Grand Rapids, Kent, Michigan, Amerika | |
| Klaaske Abrahams Roorda | |
| H: | 25 nov 1897 | 
| Grand Rapids, Kent, Michigan, Amerika | |