Isaak van Gorkom
| Family | Pedigree | Reports |
| Isaak van Gorkom |
| b. |
| d. |
| Sofia van Seventer |
| b. |
| d. |
| Abraham van Gorkom |
| b. |
| d. bef 1700 |
| Anneken Heijndricx |
| b. abt 1625 |
| d. |
| Johan van Seventer |
| b. |
| d. |
| Thomas van Gorkom |
| b. abt 1597 |
| d. |
| Lysbeth de Leeuw |
| b. |
| d. |
| Family | Pedigree | Reports |
| Isaak van Gorkom |
| b. |
| d. |
| Sofia van Seventer |
| b. |
| d. |
| Abraham van Gorkom |
| b. |
| d. bef 1700 |
| Anneken Heijndricx |
| b. abt 1625 |
| d. |
| Johan van Seventer |
| b. |
| d. |
| Thomas van Gorkom |
| b. abt 1597 |
| d. |
| Lysbeth de Leeuw |
| b. |
| d. |