1. | Sijbe Sjoerdsma Family/Spouse: Renske Posthuma. [Group Sheet] [Family Chart]
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2. | Ruurd Sjoerdsma (1.Sijbe1) was born on 02 Jul 1917 in Holwerd, Westdongeradeel, FR, NLD; died on 17 Oct 1969 in Rheden, GL, NLD. Family/Spouse: I.P. Wiersma. [Group Sheet] [Family Chart]
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3. | P.S. Sjoerdsma (2.Ruurd2, 1.Sijbe1) |