The following data is extracted from Genealogy and Biography of Ontario County, New York.
Cephas, son of Remembrance Sheldon. was born in Bernardston, Massachusetts, 1754. He was a soldier in the revolution from Bernardston and Deerfield, in Captain Amasa Sheldon's company, Colonel Elisha Porter's regiment, from July 10 to August 12. 1i77, in the northern army; also in Captain Joseph Sheldon's company, September 23, to October 18, 1777, in the northern army. He removed to Vermont. According to the first federal census he was living in 1790 in Rochester, Windsor county, Vermont, and had in his family two sons under sixteen and four females. He went thence to Waterbury, Vermont, where his sister, Persis (Sheldon) Allen, also settled. His name appears in list of revolutionary veterans who settled there.
Source: Genealogy and Biography of Ontario County, New York