Would like to add that www.digitalarkivet.no
is a great place to find original records. It's in Norwegian but you can hit an "English" button.
You will be looking in Eidfjord, Ulvik, Hordaland for your (and my)ancestors.
My great grandfather's second wife Anna Tormosdatter Saebbe (Saby) married Endre Haaverson Hereid (Konrad's brother) after the death of both of their spouses. I believe he died in Washington in 1912, she in California in 1940.
Anna was a sister of your Modley Saebbe (Konrad's wife), and named a child Madli/Modley GARETHUN after her (or more probably after another older relative.
Anna's first husband Sylfest GJERMUNDSON GARATUN/GARETHUN