1950 United States Federal Census

Validator (claude-sonnet-5-5, 2026-10-28): supports, confidence 4/4, tier record.
The 1950 census sheet for Manitowoc, ED 36-48B, line 10, lists Frank Konecny as head, married, age 54, born in Czechoslovakia, working as a welder in shipbuilding. This matches the residence, relationship, marital status and occupation in the claim. The age fits a birth around 1895. The age/birth-year point is a minor note and not a conflict.
Matches: Line 10: Konecny Frank, Head, W, M, age 54, married; Born Czechoslovakia (written "Czecho Slovakia"), consistent with a Czech-born František; Occupation: Welder, industry Shipbuilding, matching the claim's occupation; Relationship Head and marital status married match the claim; Place: Manitowoc, Manitowoc County, Wisconsin; ED 36-48B matches the citation; Wife Lydia, 54, and son Louis, 26, in the household
Flags: Age 54 implies birth around 1895/1896, which fits the 1895 birth year, but the sheet's age 54 is slightly ambiguous if the census was taken April 1950 (birth 1895 would give age 54 or 55)
Limits: Census gives an age, not a birth date, so it cannot confirm the 1895 birth or the 1976 death; It does not prove that this Frank Konecny is the same person as the František in the database, though the birthplace and age fit; Handwriting is cursive and some details, such as the immigration year, are hard to read