1. | Willem Jans Kooiman was born about 1904 in Barneveld, GL, NLD. Willem married Margaretha Alide Wumkes on 03 Aug 1927 in Leeuwarderadeel, FR, NLD. Margaretha (daughter of Geert Aeilco Wumkes and Alida Ates Sap) was born on 04 Jun 1902 in Zeerijp, 't Zandt, GR, NLD. [Group Sheet] [Family Chart] |