| Male Otto van Heurn, Dr. |
| Birth | 8 Sep 1577 | Utrecht, Utrecht, The Netherlands |
| Death | 14 Jul 1652 | Leiden, South Holland, The Netherlands |
| Burial | ||
| Marriage | 1602 | |
| Father | Johan Heurnius, Dr. | F569 Group Sheet | |
| Mother | Christina Beijer (van Boppaert) | F569 Group Sheet | |
| Female Johanna Berendina Laurensdr van Swaenswijck |
| Birth | Abt 1580 | Leiden, South Holland, The Netherlands |
| Death | 29 Sep 1668 | |
| Burial | ||
| Father | Laurens Andriesz van Swaenswijck | F570 Group Sheet | |
| Mother | Anna Dircs Visscher | F570 Group Sheet | |
| Female + Johanna van Heurn |
| Birth | Abt 1620 | Leiden, South Holland, The Netherlands |
| Death | 29 Sep 1688 | 's-Hertogenbosch, North Brabant, The Netherlands |
| Burial | St. Janskerk |
|
| Spouse | Laurens (Storm) van 's Gravesande | F566 | |
| Marriage | 17 Apr 1635 | Hoogland kerk, Leiden, Zuid-Holland, The Netherlands |