Sandgate's charter was granted August 11, 1761, by Benning Wentworth, Governor of the Province of New Hampshire, the same year as its neighboring towns of Arlington, Manchester, and Rupert. Settlement of Sandgate did not commence until some ten or more years after its charter was granted. 
The Vermont Historical Gazetteer is a 5 volume set of historical information by Abby Maria Hemenway with Volume I published in 1867 and Volume V completed in 1891 after her death. Also available online in PDF format at this link.
Story of Sandgate, Irma Renner, 1761-1961 Bicentennial edition.
FamilySearch Historical Records Collection has Vermont birth, death, and marriage records online.
The probate district for Sandgate is Manchester.
Manchester Probate Court
P.O. Box 446
Manchester, VT 05846
Phone: (802) 362-1410
The following is a list of cemeteries in present-day Sandgate. For location of cemeteries, see Cemeteries of Vermont, Bennington County, website at this link.
- Beartown Cemetery - inscriptions at Find A Grave site.
- Sandgate Center Cemetery - inscriptions at Find A Grave site.
- West Sandgate Cemetery - inscriptions at Find A Grave site.
Sandgate VT Cemeteries - short description of cemeteries located in Sandgate, VT
The first church built in Sandgate was the Congregartional Church - Congregational Church History
The Family History Library has microfilm of original records from the Sandgate Town Clerks Office. These include Records of births, marriages, and deaths, 1868-1994, Records of attachments on land, 1852-1891, and Land records, 1775-1900.
Sandgate Town Hall
3266 Sandgate Road
Sandgate, VT 05250
Phone: (802) 375-9075
Libraries and Historical Societies
- History of the Town of Sandgate, http://www.rootsweb.ancestry.com/~vermont/BenningtonSandgate.html