Jan Cornelisz van Raaphorst was born 1725 to Cornelis Cornelisse van Raaphorst (1696-) and Catharina Pietersdr Arkshoek (bef1704-1740) . He married Alijda Sijmonsdr van der Schilde (1726-1781) 27 October 1748 in Voorhout, South Holland, Netherlands.
Children
| Name | Birth | Death | Joined with |
| Cornelis Jansz van Raaphorst (1749-) | 1749 | Marijtje Aris van Velsen (bef1766) | |
| Jannetje van Raaphorst (1750-) | |||
| Maria van Raaphorst (1752-) | |||
| Neeltje van Raaphorst (1754-) | |||
| Leendert van Raaphorst (1756-1819) | |||
| Aagje van Raaphorst (1758-bef1760) | |||
| Sijmen van Raaphorst (aft1726-) | |||
| Aagje van Raaphorst (aft1726-) | |||
| Joannes van Raaphorst (aft1726-) | |||
Footnotes (including sources)
| ‡ General |