| Name | Role | Place | Source | |
|---|---|---|---|---|
| Gerard Jacob IJssel De Schepper | Father | 1828 | Arnhem | Civil registration births |
| Gerard Jacob IJssel de Schepper | Father | 1873 | Arnhem | Civil registration deaths |
| Gerard Jacob Ijssel de Schepper | Mention | 1927 | Nijmegen | Notarial records |
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