1880 United States Federal Census

Validator (claude-sonnet-5-5, 2026-10-28): consistent, confidence 2/4, tier record.
The 1880 census image shows Sarah Bentley, 73, mother-in-law in the Cyrus S. Clark household at Pulaski, Oswego, NY, born in New York. This is consistent with a New York birth around 1807-1808, but the age is about 1-2 years off the claimed 1808 date, and no exact date or town is given. It cannot support the specific birth date or place of Stillwater.
Matches: Line 14 shows Sarah Bentley, white female, age 73, 'Mother in law' in the household of Cyrus S. Clark, Village of Pulaski, Oswego County, NY; Age 73 on 1 June 1880 implies birth c. 1806-1807, within about a year of 1808; Birthplace column reads N.Y., which fits a birth in Stillwater, Saratoga County, New York at state level; Enumeration district 262 matches the citation detail
Flags: Age 73 gives a birth year of 1806/1807, so it sits at the edge of the one-year tolerance for 1808 (a 2 Sept 1808 birth would make her 71 on 1 June 1880)
Limits: A census gives an age, not a birth date, so the day and month of 2 September 1808 cannot be confirmed; Birthplace is recorded only as N.Y., not Stillwater or Saratoga County; The record does not state the death year (1886) or other details of the claim; Identification as the same Sarah Bentley depends on her relationship; the household shows her as mother-in-law of Cyrus Clark, whose wife is Sarah S., age 36 (maiden name not stated), and on Alida Bentley, sister-in-law, age 38; The page number on the image is 4 (stamped page 55d in the citation); the page number differs but the ED matches