1. | Sijbe Sjoerdsma Other Events and Attributes:
Notes: More children? Family/Spouse: Renske Posthuma. [Group Sheet] [Family Chart]
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2. | Ruurd Sjoerdsma ![]() Other Events and Attributes:
Notes: From "De Hallummer Wiersma's" Family/Spouse: I.P. Wiersma. [Group Sheet] [Family Chart]
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3. | P.S. Sjoerdsma ![]() |