Family Group Sheet| FATHER | | Siebe Abram Kooystra | | BIRTH | 9 September 1929 | | | DEATH | 11 May 2011 | | | REF # | | 26944; | | FATHER | Hoyte Kooistra | | MOTHER | Johanna Wilhelmina Kroon | | | | MOTHER | | Pauline Haantjes | | REF # | | 1620; |
| | | CHILDREN | | 1. | Hanke Kooystra MALE | | | REF # | | 26946; |
| | 2. | Hoyte Kooystra MALE | | | REF # | | 26947; |
| | 3. | Ulco Kooystra MALE | | | REF # | | 26948; |
| | 4. | Siebe Kooystra MALE | | | REF # | | 26949; |
| | 5. | Elmar Kooystra MALE | | | REF # | | 26950; |
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