Gertrude
Knoef
Birth date:
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Death date:
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Knoef Family
Parents:
| Father: | John Knoef |
| Mother: | Petranella Nelisse |
Spouse:
| Spouse: | Walter T. Hylkema |
Siblings:
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Gertrude
Knoef
Leona Knoef Raymond Knoef Clayton Knoef Clifton Knoef |
Children:
