1. | Cornelis Gerrits Kooistra was born about 1866 in Franeker, FR, NLD. Cornelis married Margaretha Post on 30 May 1889 in Franeker, FR, NLD. Margaretha (daughter of Aafke Oeges Post) was born on 08 Jul 1865 in Harlingen, FR, NLD. [Group Sheet] [Family Chart]
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2. | Gerrit Cornelis Kooistra (1.Cornelis1) was born on 17 Dec 1895 in Franeker, FR, NLD. Gerrit married Tjitske Jans Wijnia on 30 Nov 1921 in Franeker, FR, NLD. Tjitske (daughter of Jan Watzes Wijnia and Joukje Martens de Boer) was born on 12 Mar 1897 in Lollum, Wonseradeel, FR, NLD. [Group Sheet] [Family Chart]
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3. | J.G. Kooistra (2.Gerrit2, 1.Cornelis1) J.G. married S.J. van der Boom [Group Sheet] [Family Chart]
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4. | T. van der Boom (3.J.G.3, 2.Gerrit2, 1.Cornelis1) |