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Izak Philip de Haan, birth Haarlem, Noord-Holland, Nederland, son of Philip or Philippus de Haan and Judik or Judith Frank
 Married 11 Aug 1839 Leeuwarden, Friesland, Nederland to: Dina Mozes Speelman, birth Leeuwarden, Friesland, Nederland, daughter of Mozes Wolf Speelman and Schoontje Salomon Turksma  | 
| 1) Johanna de Haan, birth 13 Feb 1832 Leeuwarden, Friesland, Nederland | 
| 2) Sipkje de Haan, birth 24 Nov 1834 Leeuwarden, Friesland, Nederland | 
| 3) Judikje de Haan, birth 4 Aug 1840 Leeuwarden, Friesland, Nederland, died 28 Jun 1842 Leeuwarden, Friesland, Nederland | 
| 4) Johanna de Haan, birth 4 Aug 1840 Leeuwarden, Friesland, Nederland | 
| 5) Aaltje de Haan, birth 26 Jan 1843 Leeuwarden, Friesland, Nederland, died 21 Feb 1843 Leeuwarden, Friesland, Nederland | 
| 6) Grietje de Haan, birth 11 MRT 1847 Leeuwarden, Friesland, Nederland | 
| 7) Philippus de Haan, birth 2 Apr 1849 Leeuwarden, Friesland, Nederland |