1910 United States Federal Census

Validator (claude-sonnet-5-5, 2026-10-28): consistent, confidence 2/4, tier record.
The 1910 census sheet 5A, ED 1269, Chicago Ward 29, has a Tauber household headed by James, age 34, born in Bohemia, a carpenter who immigrated in 1901. This fits the claimed birth year within a year and the Bohemian origin. It cannot confirm the exact date or village, and the name James versus Václav needs corroboration from the family's other records.
Matches: Household in the image: Tauber, James, head, male, white, age 34, married 11 years, born Austria-Bohemia, parents born Austria-Bohemia; Surname Tauber matches the claim, and the birthplace is Bohemia; Age 34 in April 1910 implies birth around 1875–76, which is close to the claimed 1876; Immigrated in 1901, and the household includes wife Francis (34), son Jerry (10) and son James (8)
Flags: Given name is 'James', not Václav. English-speaking enumerators did sometimes render Václav as James or Jim, but the record does not confirm this.; A birth on 17 Nov 1876 would make him 33 on 15 April 1910, but the census says 34. This is a one-year difference, which is within normal census error.
Limits: A census gives only an approximate age, not a birth date; The place of birth is given only as 'Austria-Bohemia', so Mostiště and Rokycany are not confirmed; The record does not say that 'James' is Václav, so identification depends on other evidence, such as the wife's and children's names matching the family tree; The image is a readable original, but the handwriting is small and a few fields are hard to read