| Name | Role | Place | Source | |
|---|---|---|---|---|
| Gerardus Henricus Joseph Ruijgrok | Child | 1913 | Rotterdam | Civil registration births |
| Gerardus Henricus Joseph Ruijgrok | Child | 1913 | Rotterdam | Civil registration births |
| Gerardus Henricus Joseph Ruijgrok | Registered | 1913 | Rotterdam | Population register |
| Gerardus Henricus Joseph Ruijgrok | Registered | 1922 | Rotterdam | Population register |
| Gerardus Henricus Joseph Ruijgrok | Groom | 1939 | Voorburg, Rotterdam | Civil registration marriages |
| Gerardus Henricus Joseph Ruijgrok | Registered | 1922 | Rotterdam | Population register |
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