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Familie: Oscar Emanuel Octavius Nielsen / Marie Lorentse Keller (F49350)
Frederik Ferdinand Nielsen (1830- ) 
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Cecilie Caroline Olsen (1833- ) |
| Johan Laurentius Keller (1819- )
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| Petra Christine Hansen (1823- )
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| Christian Edvard Keller (1844- ) |
| Oscar Emanuel Octavius Nielsen (1861-1921)
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| Marie Lorentse Keller (1866- )
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| Holger Emanuel Nielsen (1889- ) |
| Dagmar Alvilda Nielsen (1891- ) |
Edith Cecilie Xenia Nielsen (1892-1948)  |
| Aage Emanuel Nielsen (1894- ) |
| Axel Otto Vilhelm Nielsen (1896- ) |
| Robert Otto Nielsen (1897- ) |
| Oscar Emanuel Oktavius Nielsen (1900- ) |