Where is the support to list Tormond Nilsson Gåthaug as the father of this person? Looking at p411 of Sauherad bygdebok vol 2, that author is uncertain about his parentage, and describes him as simply "Nils Gåthaug". https://www.nb.no/items/b439ee46191564168f91e21014687702?page=413
Are there other sources available that provide evidence of who this person's parents are? If not, I suggest we remove the parents from this profile.