NGV Stambomenverzameling
Gezin: Roelof Slump / Tetje Kok (F18559)
getr. 18 nov 1883Willem Wytzes Kok (1835- ) 
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Grietje Hultes Plantinga (1840- )
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| Antje Kok (1864-1886) |
| Wytze Kok (1866- ) |
| Hultje Kok (1868- ) |
| Henderika Gerardina Kok (1870- ) |
| Hendrika Gerridina Kok (1871- ) |
| Idske Kok (1874- ) |
Gettje Kok (1876-1951)  |
| Huite Kok (1879- ) |
| Sake Kok (1880- ) |
| Mina Kok (1883- ) |
| Roelof Slump (1860-1926)
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| Tetje Kok (1863- )
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| Grietje Slump (1885- ) |
| Willem Slump (1888- ) |