| Male Willem Joost |
| Birth | 14 Jun 1853 | Amsterdam  |
| Death | 2 Apr 1900 | Amsterdam |
| Burial | ||
| Marriage | 23 Sep 1896 [1] | Amsterdam [1] |
| Type | burgerlijk huwelijk | |
| Father | ||
| Mother | ||
| Female Gijsberta Maria Bosdam |
| Birth | 12 Aug 1860 | Amsterdam |
| Death | 25 Mar 1941 | Amsterdam (Sloten) |
| Burial | ||
| Father | ||
| Mother | ||
| Female + Wilhelmina Gijsberta Joost |
| Birth | 9 Feb 1899 | Amsterdam |
| Death | 17 May 1987 | Amsterdam |
| Burial | ||
| Spouse | Casper Hendrik Lanfermeijer | F566 (burgerlijk huwelijk) | |
| Marriage | 31 Jan 1917 | Amsterdam |
| Notes | Married:
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