My Norwegian isn't the strongest, so I'll leave the question of a continuing project with the Luster bygdeboks to someone else. To answer your question regarding Tollef's profile, it seems you have the general grasp. The passage you put in the footnotes is about his father, so you are correct that the list of people are his siblings, not children. I expect you'll be able to find a more descriptive passage on Tollef, his marriage, and any children somewhere else in the Nes section of the book.