Arthur Sefton
| +---Thore Andersen Bergum
| +---Anders Christian Thoresen (19 JUL 1829-16 SEP 1893)
| | +---Marthe Olsdatter 
| +---Olaf Jack Thoresen (19 JUL 1870-)
| | +---Olia Lena Olsdatter (20 JUL 1835-1918)
+---Hannah Myrtle (Myrt) Alice Thoresen (1903-)
| +---Peder Pedersen
+---Petreia Ellen Pedersen (-1939)
+---Nicolina ?