Erik Berntsens slektssider
Familie: A. W. H. Backer / Winfred Louise Castberg (F31469)
g. 1920Peter Harboe Castberg (1844-1926) 
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Nina Benham (1864- )
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| Henry Tycho Edvard Castberg (1887-1888) |
| Francis Arthur Harboe Castberg (1889-1915) |
| Winfred Louise Castberg (1891- )
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| Diana Backer (1922- ) |