I've had a bit of luck recently locating the children of Ole and Mari Finnestad's eldest daughter, Elizabeth.*
I've been able to locate the Norwegian parish records for 4 of Elizabeth and Ole Andreas Knutson's children. Once I've been able to confirm the name of the one child I am missing, I'll be posting the corresponding documents.
I have updated two names for Elizabeth's branch to the family tree. Click on the "tree" in the right margin.
*Elizabeth had married and started her own family before Ole and Mari had moved to the Finnestad farm, so 'Finnestad' was never part of her maiden name.