NGV Stambomenverzameling
Gezin: Johannes Jacobus Wilhelmus Gr?ber / Maria Antonia Schaefer (F1313314673)
getr. 14 jul 1921Johannes Schaefer (1863-1945) 
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Cornelia van Donk (1862-1915)
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Willem Schaefer (1894- )  |
| Amos Schaefer (1895- ) |
| Adriana Schaefer (1898-1982) |
| Cornelia Schaefer (1899- ) |
| Paul Schaefer (1903- ) |
| Hendrik Schaefer (1906- ) |
| Johannes Jacobus Wilhelmus Gr?ber (1896- )
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| Maria Antonia Schaefer (1897- )
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