1950 United States Federal Census

Validator (claude-sonnet-5-5, 2026-10-28): consistent, confidence 2/4, tier record.
Mary, wife of James Hajnal, is listed at age 46, born Bohemia. That fits a birth in late 1903 and a Czech-lands origin, so nothing contradicts the claim. The census does not give the exact date, the village or the maiden name, so it only loosely corroborates the birth claim.
Matches: Household of James Hajnal (Head, 61, born Bohemia) lists Mary, wife, age 46, born Bohemia, naturalized (yes); Age 46 on the April 1950 census date implies birth between about April 1903 and April 1904, which fits 16 October 1903; Foreign birth in the Czech lands fits a birth in Moravia, which was part of Czechoslovakia by 1950
Limits: The census gives an age, not a birth date, so it cannot confirm 16 October 1903; It gives only 'Bohemia' as the birthplace, not Svatý Štěpán, Bylnice or Brumov, and Bohemia is not Moravia in the strict sense. Enumerators often used it loosely for the Czech lands; The entry is under the married name Hajnal; nothing in the record shows her maiden name was Konecny, so identity depends on other evidence; The entry has a household of James, Mary, Frank, James Jr., Joseph and Rosemary. Whether this couple is the Mary Konecny of the database comes from outside this record; The image is a dark, low-contrast scan, so handwritten values such as the age and surname were read with some uncertainty