NGV Stambomenverzameling
Gezin: Gerrit Hendrik Koudijs / Johanna Alwicher (F12675)
getr. 13 aug 1937Willem Alwicher (1877-1943) 
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Harmina Outjers (1877-1927)
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| Jan Willem Cornelis Alwicher (1903-1904) |
| Cornelia Wilhelmina Alwicher (1904- ) |
Wilhelmina Alwicher (1906-1988)  |
| Elisa Maria Alwicher (1908-1985) |
| Alijda Antonia Aleida Alwicher (1909- ) |
| Hermine Alwicher (1910- ) |
| Martha Franziska Alwicher (1912-1996) |
| Katharina Alwicher (1914-1915) |
| Gerrit Hendrik Koudijs (1900-1979)
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| Johanna Alwicher (1907-1984)
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