1910 United States Federal Census

Validator (claude-sonnet-5-5, 2026-10-28): consistent, confidence 2/4, tier record.
The image shows the Word household in Chicago Ward 7 with wife Mary B. (48, married 21 years) and Emilie M. Bentley as mother-in-law. This supports the residence, the wife relationship and the married status for a Mary née Bentley. The identification relies on the maiden-name inference and the B/W initial difference, so it is consistent rather than fully stated.
Matches: 1910 census, Chicago city, Ward 7, Cook County, Illinois, ED 436, sheet 4A. This matches the claimed place and date.; Household of George S. Word (lines 2–7) includes a wife, Mary B., age 48, married (M1) for 21 years. This fits 'Wife' and 'Married'.; The age of 48 gives a birth year of about 1862, within one year of the claimed 1861.; Line 8, Emilie M. Bentley, age 76, widow, is listed as mother-in-law in the same household. This fits Mary having the maiden name Bentley.; Emilie was born in Pennsylvania, and Mary's mother is also recorded as born in Pennsylvania, so the two are consistent as mother and daughter.
Flags: The wife is enumerated as 'Mary B. Word', not 'Mary W. Bentley'. The surname is the married name, and the middle initial reads B rather than W. The handwriting is small, so the initial may be misread or a mistake.
Limits: The record does not name Mary under her maiden name. Bentley is inferred only from the mother-in-law entry.; A census age gives a birth year, not a date, and cannot confirm 1861 exactly.; The record does not give her death year (1938).; The middle initial is unclear, so identification rests on the household structure.