Smithfield is an extinct town formerly in Franklin County, Vermont. Smithfield was established in 1763 by a grant of 23,040 acres from Vermont, and confirmed by an overlapping 25,000 acre grant from New York. In 1792 the former Smithfield was annexed by Fairfield, and by Bakersfield in Franklin County, Vermont. 
Records. Try searching for information about former residents of Smithfield in:
- Fairfield, Vermont town records 1786-1858 are preserved at Fairfield, Vermont. Also, a microfilm copy of Fairfield town records is available from the Family History Library on film 028189. Other types of records also exist for Fairfield.
- Bakersfield, Vermont town records 1792-2000 are preserved in the Town Hall at Bakersfield, Vermont. Also, a microfilm copy of Fairfield town records is available from the Family History Library on 6 films starting with 027869. Other types of records also exist for Bakersfield.
- Land Grants That Became the Towns of Vermont - S at All Ancestors (Internet site)(accessed 3 April 2013).
- Michael J. Leclerc, Genealogist's Handbook for New England Research, 5th ed. (Boston, Mass.: New England Historic Genealogical Society, 2012), 395. At various libraries (WorldCat); FHL Book 974 D27g 2012.