22 C.F.R. § 51.50 Alien born woman—marriage to citizen prior to September 22, 1922.
Title 22 - Foreign Relations
An alien woman who acquired U.S. citzenship by virtue of her marriage to a citizen of the United States prior to September 22, 1922, shall submit with her application evidence of her husband's citizenship and of the marriage. (Section 1994 of the Revised Statutes.)
Title 22: Foreign Relations
PART 51—PASSPORTS
Subpart C—Evidence of U.S. Citizenship or Nationality
Married Women
§ 51.50 Alien born woman—marriage to citizen prior to September 22, 1922.