Erik Berntsens slektssider
Familie: Franz Johannes August Grothe / Kirsten Heiberg (F35412)
Sverre Heiberg (1878-1955) 
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Johanne Marie Schweigaard (1882-1948)
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| Marie Margrethe Heiberg (1904-1906) |
Else Cathrine Heiberg (1910- )  |
| Franz Johannes August Grothe (1908-1982) |
| Kirsten Heiberg (1907-1976)
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