Pieter Beemsterboer was born 25 October 1798 in Nibbixwoud, North Holland, Netherlands to Jacob Beemsterboer (1772-1850) and Maartje Pronk (1775-1802) and died 26 March 1878 Westwoud, North Holland, Netherlands of unspecified causes. He married Aaf Groot (1793-1832) 26 December 1822 in Egmond-Binnen, North Holland, Netherlands. He married Maartje Beemsterboer (1802-1836) 5 August 1832 in Hoogkarspel, North Holland, Netherlands. He married Cornelia Appelman (1808-1857) 19 June 1836 in Hoogkarspel, North Holland, Netherlands. He married Catharina Komen (1799-1888) 19 April 1860 in Westwoud, North Holland, Netherlands.
Children
| Name | Birth | Death | Joined with |
| Jacob Beemsterboer (1822-1852) | 16 February 1822 Egmond-Binnen, North Holland, Netherlands | 2 January 1852 Zwaag, North Holland, Netherlands | Sijtje van der Heide (c1821-1898) |
| Dirk Beemsterboer (1825-1839) | |||
| Maria Beemsterboer (1829-1868) | |||
| Name | Birth | Death | Joined with |
| Gerrit Beemsterboer (1837-1923) | |||
| Cornelis Beemsterboer (1838-1899) | |||
| Dirk Beemsterboer (1839-1910) | |||
| Johannes Beemsterboer (1841-1918) | |||
| Pieter Beemsterboer (1845-1859) | |||
| Wilhelmus Beemsterboer (1850-1914) | |||
Footnotes (including sources)
| ‡ General |