My Paternal Great-Great-Grandfather was Jacques/Jocko/John Thouvelin LaRiviere, born in 1804 in Yamaska County, Quebec.He had a brother, Jean Baptiste, born Dec. 26, 1808 in Yamaska County.He married a Rose Couturier-Verville on 2-14-1832.He passed away on 3-39-1869. Jocko, my Great Great Grandfather, emigrated to Vermont in the 1840s. He was a farmer and lived in Enosburg, Franklin County, then in Lowell, Orleans County, and finally in Morristown, Lamoille County.
It is possible that Jocko's brother had a son that moved to Vermont.
I have more information on Jocko's family, back to to the early 1700s in Lorraine, France.Let me know if you would like me to email it to you.
Does any of the above help? Did you try the Mormon database: FamilySearch.org to search records in Vermont? It has data from U.S. and Vermont state census records dating back into 1850 that could help you work back in time.