Andrine Christiane Johnsdatter

I submitted this request a year or so ago...no luck so will try again. I am puzzled by a 21-year gap in Norway records of my grandmother. She was born 12 Dec 1871 on her maternal grandparents' farm at Sondre Aase, Hordaland. Grew up on her parents' farm at Myksvoll (also spelled Moksvold), Lindaas parish, Hordaland. Confirmed 3 Oct 1886 at the Lygre church, near Myksvoll. The next record I find for her is dated 2 Sep 1907 in the Lygre parish register, mentioning her intended emigration. Later that month she married my grandfather Hans O. Fosse in the Neukirken, Bergen, and they emigrated to Washington state, USA. I do not find her in the 1891 nor 1900 censuses...nor any other record. She was just a farm girl...odd that she would disappear. Any help appreciated.