Derk Jan Hansman was born circa 1836 in Ommen, Overijssel, Netherlands to Hendrik Hansman (c1797-1861) and Gerridina Stegen (c1802-1870) and died 30 November 1909 Ommen, Overijssel, Netherlands of unspecified causes. He married Evertien Kieft (c1839-1896) 12 July 1861 in Ommen, Overijssel, Netherlands.
Children
| Name | Birth | Death | Joined with |
| Hendrik Jan Hansman (c1862-1947) | |||
| Gerrit Jan Hansman (c1864-1870) | |||
| Gerridina Hansman (c1866-1929) | |||
| Johanna Hansman (c1868-) | |||
| Geertje Hansman (c1872-1934) | |||
| Aaltje Hansman (c1875-1933) | |||
| Hermina Hansman (c1879-1937) | |||
| Jantje Hansman (c1883-1950) | |||