You may want to check out this site devoted to Voss. http://www.vosselag.org/vossgenres.html
You can join the List and perhaps get some confirmation to prove Taryn's theory. A few people have some databases for many of the Vossings. I looked in one book, Historie om Udvandringen fra Voss and I didn't see him but that doesn't mean a thing. Not everyone is in it, or perhaps the name is not what we expect...
Taryn is one of the best researchers but you should always prove connections beyond a shadow of doubt. I have seen people spend a couple of years chasing down the wrong people. (They didn't have Taryn's help! )