Family Group Sheet| FATHER | | Gerrit Willems Twijnstra | | BIRTH | 16 February 1902 | Nijland | | DEATH | 29 April 1976 | | | FATHER | Willem Gerrits Twijnstra | | MOTHER | Gesina Wijngaarden | | | | MOTHER | | Gerbrig Annes Cnossen | | BIRTH | 16 April 1902 | Folsgare | | DEATH | 7 August 1991 | | | FATHER | Anne Sjirks Cnossen | | MOTHER | Anna Annes de Jong |
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