NGV Stambomenverzameling
Gezin: Gerard Rudolph Lever / Elisa Gesina Roos (F13944)
getr. 2 jan 1929Johannes Gerradus Roos (1870-1930) 
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Elisa Gesina Scheper (1871-1948)
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| Gerridina Roos (1892-1892) |
Elsje Roos (1893- )  |
| Johannes Roos (1895-1964) |
| Gerridina Roos (1897- ) |
| Meiske Roos (1899-1928) |
| Gerhard Roos (1900-1901) |
| Gerhard Roos (1902- ) |
| Roelof Kornelis Roos (1904-1905) |
| Eefje Roos (1908-1908) |
| Everdina Cornelia Roos (1909- ) |
| Elisa Gesina Roos (1906-1987)
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| Gerard Rudolph Lever (1895-1959)
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