What is your source for the names? I have a feeling that the 1865 census that I posted is correct. I think this is the birth record for your Bertha:
Born 10 Nov 1857
Father: Halvor Kittelsen Kjækhuusland
Mother: Jyri Tarjesdatter
Kildeinformasjon: Telemark fylke, Vinje, Ministerialbok nr. I 4 (1843-1869), Fødte og døpte 1858, side 85.
Permanent sidelenke: http://www.arkivverket.no/URN:kb_read?idx_kildeid=1422&i...
"Kjækhuusland" is a farm in Vinje parish, Telemark.
"Jyri" is a very uncommom name. This is the only married couple named Halvor / Jyri I could find.