U.S., Naturalization Record Indexes, 1791-1992 (Indexed in World Archives Project)

Validator (claude-opus-5-5, 2026-10-28): consistent, confidence 2/4, tier index.
The card is filed under H-254 for Mary Hejnal of 1220 W. Reservoir Ave., Milwaukee. It gives birth on Oct. 16, 1903 in Czechoslovakia and naturalization on Feb. 15, 1940 (certificate CN-4803725, Circuit Court, Milwaukee Co.). The naturalization date and birth year match the claim exactly, but the surname does not. The card can only be accepted for Mary Konecny if other evidence, such as a marriage record or the full petition (P 36582), shows she was Mary Hejnal in 1940.
Matches: Given name Mary; Date of naturalization Feb. 15, 1940 matches the claimed date exactly; Born Oct. 16, 1903, which fits the claimed birth year 1903; Country of birth Czechoslovakia fits a Czech surname such as Konecny; Naturalized in Circuit Court, Milwaukee Co., Milwaukee, Wis.; INS District 9, named in the citation, covered Wisconsin as well as northern Illinois
Flags: Surname on the card is Hejnal (Soundex code H-254), not Konecny; this is not a spelling variant, and nothing on the card links the two names
Limits: Soundex index card abstracting the naturalization; the petition itself is not shown; No spouse, parents, arrival date or witnesses recorded, so the card cannot show whether Hejnal was a maiden or married name for a later Mary Konecny; Back of card ('Additional information in court record') is blank