1940 United States Federal Census

Validator (claude-sonnet-5-5, 2026-10-28): consistent, confidence 3/4, tier record.
The image shows the household of Joseph Konecny on lines 2–6 of sheet 15A. He is 39 and born in Bohemia, so the name and the implied birth year of about 1900–1901 fit the claim. The record supports the name, but it says nothing about death or an exact birth date, and identification with the database person depends on corroborating details.
Matches: 1940 census, Milwaukee, Wisconsin, ED 72-30, sheet 15A, matches the citation detail; Household head on line 2 is written "Konecny, Joseph", age 39, born Bohemia, a welder, which fits a man born in 1901; Wife Agnes (36, born Bohemia) and sons Robert, Walter and Joseph (Jr.) are listed with him; The supplementary line for Robert Konecny gives Bohemia as the birthplace of both parents, which fits a Bohemian-born head
Limits: The census gives the name as Joseph Konecny and an age of about 39, but no birth date, so it cannot confirm 1901 exactly or the death year 1985; It does not show that this household belongs to the Joseph Konecny in the database; that rests on other evidence such as spouse, children and place; The handwriting is small and the spelling reads as Konecny; the image resolution leaves some details uncertain