My name is Helga Kallevik. I live about 30 minutes by car from Valestrand, Sveio, and my grandmother came from that area. I have local history books from this place and here I find a farm called Tveita.
On this farm I find a person named Tolleiv Johan Vierson Tveita, born 1859. He was married to Dordi Larsdatter Eidsvaag also born 1859.
They had the children: 1)Vilhelm Gustav b. 1881 and 2)Lars Bernhard b.1882.
(Tolleiv also had a son Viking Theodor born 1877 and married to Helga Kristine Hansdatter Valen, at Gramshaug,Sveio Norway).
Tolleiv lived at Tveita farm until 1884, then he took his family with him and emigrated to USA. Before he left he sold to Ellen Marie Olsdatter Steintveit.
The father of Tolleiv was Vier Johanesson Tveita (1811-1869) and Aagota Absalonsdatter (She was earlier married to Tolleiv Taraldson Breistig).
Vier and Aagota only had the child Tolleiv (1859).
Aagota emigrated to America in 1888 (to her son ?).
This is what I can find in Sveio bygdebook.