Confirming Translation

Hey all, I'm looking at this kirkeboker for Leikanger, Sogn og Fjordane, line 4 for 1857 at this link: [View image] I believe this says his father Johan is from Vesterberg (farm name?) and his wife is from Borlaug? And her father's naem is Johannes Olsen? Also might anyone be able to tell me who Nils and Johannes listed in the next column might be? Are they witnesses? They're clearly related to her I would think, given the names and same farm name? Thanks as always!