| 1. | Harmen Spekman Family/Spouse: Jaapje de Haas. [Group Sheet] [Family Chart]
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| 2. | Hermanus Spekman Hermanus married Hendrikje Stokhof on 22 May 1820 in Nieuwkoop. Hendrikje (daughter of Wilhelmus Stokhof and Johanna Aelderts Vermeij) was born on 23 Feb 1788 in Nieuwkoop; died on 6 Oct 1857 in Ter Aar. [Group Sheet] [Family Chart]
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| 3. | Wilhelmina Spekman Wilhelmina married Dirk den Beer [Group Sheet] [Family Chart] |
| 4. | Margaretha Spekman Margaretha married Frederik Meijer [Group Sheet] [Family Chart] |