MaleWillem Marinus Karel Boudewijn van Idsinga |
| Birth | 2 Sep 1868 | Veere, Zeeland, Nederland |
| Death | 4 Nov 1904 | Zeereis |
| Burial | ||
| Marriage | 22 Feb 1900 | Arnhem, Gelderland, Nederland |
| Father | ||
| Mother | ||
FemaleHelena Catharina Kesper |
| Birth | 1 Mar 1874 | Amsterdam, Noord-Holland, Nederland |
| Death | 4 Mar 1973 | Haarlem, Noord-Holland, Nederland |
| Burial | ||
| Other Spouse | Peter Constant Coops | F1191 | |
| Marriage | 21 Nov 1912 | Amsterdam, Noord-Holland, Nederland |
| Father | ||
| Mother | ||