Sijmen Pietersz Sijm was born 19 April 1744 in Onderdijk, North Holland, Netherlands to Pieter Sijm (1711-1752) and Geertje Jans (1713-1752) and died 5 November 1804 Bangert, Andijk, North Holland, Netherlands of unspecified causes. He married Neeltje Akkerman (c1743-1808) 1 June 1767 in Wervershoof, North Holland, Netherlands.
Children
| Name | Birth | Death | Joined with |
| Geertje Sijm (1768-1793) | 30 March 1768 Bangert, Andijk, North Holland, Netherlands | 1 May 1793 Bangert, Andijk, North Holland, Netherlands | Dirk Paaij (1758-1830) |
| Maria Sijmens (1770-1785) | |||
| Antje Sijm (1772-1817) | 21 December 1772 Bangert, Medemblik, North Holland, Netherlands | 2 July 1817 Andijk, North Holland, Netherlands | Jan Paaij (1773-1859) |
| Elizabeth Sijmens (1776-1777) | |||
Siblings
| Name | Birth | Death | Joined with |
| Adrianus Sijm (1750-1762) | |||
| Cornelis Sijm (1746-1809) | 3 August 1746 Onderdijk, North Holland, Netherlands | 14 February 1809 Blokker, North Holland, Netherlands | Meinouwtje Buurman (1749-1825) |
| Sijmen Sijm (1744-1804) | 19 April 1744 Onderdijk, North Holland, Netherlands | 5 November 1804 Bangert, Andijk, North Holland, Netherlands | Neeltje Akkerman (c1743-1808) |
| Anna Sijm (1742-?) | |||
| Jan Sijm (1739-1822) | 17 July 1739 Wervershoof, North Holland, Netherlands | 21 January 1822 Andijk, North Holland, Netherlands | Antje Knuijsen (1737-1825) |
Residences
Footnotes (including sources)
| Ω Birth |
| ₪ Wedding |
| ¶ Death |