1930 United States Federal Census

Validator (claude-sonnet-5-5, 2026-10-28): consistent, confidence 1/4, tier record.
The image is a readable original 1930 census page, and the Czechoslovak-born wife Frances on lines 38–43 could be the right woman. The record cannot confirm her birth date or her birthplace of Mostiště. Her age is hard to read, and the household surname differs from Tauber, so this is thin support at best.
Matches: The sheet is San Francisco, ED 38-151, sheet 2A, which matches the citation detail; Lines 38–43 list a Czechoslovak-born household: head George J., wife Frances (Františka), and children George, Emma, Sylvia and James; Frances is recorded as born in Czechoslovakia, with a mother tongue of Czech, which fits a Bohemian birth; Her year of immigration looks like 1901, and the marriage ages (wife about 23, husband 30) fit a marriage around 1906 and a first child born about 1909, which would suit a woman born in 1883
Flags: The household surname reads as something like Bouska/Touska, not Tauber. This may simply be her married name, but nothing on the page links her to Tauber.
Limits: A census gives an approximate age, not a birth date, so 6 March 1883 cannot be confirmed; The birthplace is given only as Czechoslovakia, so Mostiště, Rokycany is not shown; Frances's age is hard to read; it looks like 40 or 47, and only 47 would fit 1883; The citation does not say which line is the person in question, and the surname spelling is unclear in the image; The record does not name her maiden name or her parents