Gezin: Lambertus Postma / Elisabeth Ruckert (F42)
getr. 25 jun 1891Johannes Gerrit Nicolaas Ruckert (1834-1910) 
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Elisabeth Niesink (1830-1904)
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Cornelis Johannes Ruckert (1858-1931)  |
| Antje Ruckert (1860- ) |
| Johannes Gerrit Nicolaas Ruckert (1862-1891) |
| Hendrik Ruckert (1864-1916) |
| Susanna Elisabeth Ruckert (1867-1937) |
| Cornelis Ruckert (1842- ) |
| Lambertus Postma (1866-1935)
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| Elisabeth Ruckert (1869-1940)
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| Elize Postma (1892- ) |
| Elisabeth Postma (1894- ) |
| Geertruida Postma (1895- ) |
| Bertha Postma (1896- ) |
| Auke Postma (1899- ) |
| Johannes Gerrit Nicolaas Postma (1900- ) |