Family: Johann Gerhard Maass / Ina Scheffer (F2190)
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Antonius Julius Maass (1902-1988)
|
Grietje de Keijzer (1905-1978)
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| Johann Gerhard Maass (1929-1998)
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| Ina Scheffer (1935- ) |
| Erica Maass (1958- ) |