California Code, Government Code - GOV § 69847

The clerk of the superior court shall provide two books. In one of the books the clerk shall enter in alphabetical order the names of each person who has declared his intention to become a citizen of the United States since the organization of the court and the date of such declaration. In the other book the clerk shall enter in alphabetical order the name of each person who has been admitted a citizen of the United States by the court, and the clerk shall also enter in separate columns opposite each name, the country of which the person was before a citizen or subject, the date of his admission, and the page of the book of the record of the court containing the order admitting him as such citizen.