A lot of people mentioned in a lot of posts! Taryn's research is amazing and leads, along one line, to Lars Nielsen Tinderholt of Bamble, Telemark.
Perhaps you'd be interested in contacting this poster on RootsWeb:
"I am connected to the Tinderholt-Larson line from Ossian and Clermont, Iowa...The Tinderholts were from Bamble, Telemark. But some of your people possibly married into my people....I have much on the Lars Nielsen Tinderholt descendency."