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父母—George Friederich Heyns, e2f2g4 与 Dirkie Elizabeth Heyns 兄弟姐妹—Engela Margaretha Zondagh Remmer, g4h1; Maria Magdalena Bezuidenhout, g4h2; Johan Andries Heyns, g4h3; Cornelius Adolf Heyns, g4h4; George Frederick Heyns, g4h5 与 另外3个; George Frederick Heyns, g4h6; Dirkie Elizabeth Hewlett, g4h7 与 Johanna Christina Potgieter, f2g4h8 « 更少