In the 1900 census two households appeared at Fønhus søndre, Sør-Aurdal, Oppland. The main household was that of Arne Arnesen, the second that of his father Arne Arnesen Sr (d.æ.). As the former owner of the farm Arne was supported by his heir.
Arne Arnesen, head of household (Hf), married (g), farmer and mayor (Gaardbruger S Ordfører), born 1852, resides in the main building (Hovedbygningen)
Kristine Olsdtr wife (Hm), married (g), farmer's wife (Gaardmandskone), born 1858
Arne Arnesen, unmarried (ug), son (Søn), born 1886
Ole Arnesen, unmarried (ug), son (Søn), born 1888
Kristian Arnesen, unmarried (ug), son (Søn), born 1890
Anne Arnesdtr, unmarried (ug), daughter (Datter), born 1893
Kari Arnesdtr, unmarried (ug), daughter (Datter), born 1896
Anton Olsen Langedrag, unmarried (ug), servant, farm worker (Tjener, Gårdsarbeider), born 1880
Marit Olsdtr Løkken, unmarried (ug), servant, maid (Tjener, Indjente), born 1884
Gunhild Syversdtr, unmarried (ug), servant, milkmaid (Tjener, Budeie), born 1877
Syver Bjørnsen Dokken, temporary resident (mt), resides at Reinlid s. Aurdal, married (g), shoemaker (Skomager f. e. regn.), born 1849
Syver Syversen Dokken, temporary resident (mt), resides at Reinlid s. Aurdal, unmarried (ug), shoemaker (Skomager), born 1879.
1 Arne Arnesen d.æ., head of household (Hf), widower (e), supported by heir (Føderaadsmand) born 1826, resides in a separate house (Føderaadsbygningen)
Anne Marie Arnesdatter, daughter (D), unmarried (ug), housework (Husarbeide) born 1864, deaf-mute (D)
Ingri Olsdtr, servant (Tj), unmarried (ug), housekeeper (Husholder), born 1877.
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