Naturalization is the means by which aliens (non-British subjects) gain the privileges and rights of citizenship held by British subjects or people born in New South Wales.
Any person born outside the British Empire who had resided in New South Wales for a period of five years and who wished to vote or own land needed to become naturalized. This means that within the records, researchers will mainly find people from European countries as well as from countries such as China, the United States of America and South America. Researchers will not find people from Canada or Ireland as both of these countries were part of the British Empire.
Given the make-up of society in the 19th century when women had few legal rights and little social standing, researchers will also mainly find men in the naturalization records.