1930 United States Federal Census

Validator (claude-sonnet-5-5, 2026-10-28): consistent, confidence 2/4, tier record.
The 1930 census, sheet 36A, shows James Taubr (54, b. Bohemia, immigrated 1901) with wife Frances (54, b. Bohemia, immigrated 1901). This matches the age, origin and year of arrival of Václav and Franziska on the 1901 passenger list. It does not give the month, port or ship, so it is consistent with the arrival claim without directly stating it.
Matches: Lines 46-47: James Taubr, head, age 54, born Bohemia, with wife Frances, age 54, born Bohemia; Year of immigration given as 1901 for both James and Frances, which fits a September 1901 arrival; Both are Bohemian-born, with Bohemian as mother tongue, which fits Václav and Franziska; James is a carpenter on the railroad. Age 54 in 1930 implies birth around 1876, matching Václav (1876); Line 48: James J. Taubr, age 28, born Bohemia, fits a son Jaroslav aged 2 in 1901 (born c.1899)
Flags: The census names 'James' rather than Václav. Anglicization is plausible, but the record does not state it.; The census does not mention a ship, port, or arrival date. It cannot confirm the 16 September 1901 arrival at New York or the Kaiser Wilhelm der Grosse.
Limits: A census gives only the year of immigration (1901), not the exact date, port or ship; It does not confirm that James Taubr is Václav Tauber (1876–1956) except through the age and immigration year; The son James J. (28) might be Jaroslav, but this is not stated; his birthplace is Bohemia and his age matches only approximately; The claim is about an arrival event, so the census can only corroborate it indirectly