Amendments to the British Nationality Act were enacted in 1918, 1922, 1933 and 1943 changing derivative nationality by descent and modifying slightly provisions for women to lose their nationality upon marriage. Because of a rise in statelessness, a woman who did not automatically acquire her husband's nationality upon marriage or upon his naturalisation in another country, did not lose their British status after 1933. The 1943 revision allowed a child born abroad at any time to be a British national by descent if the Secretary of State agreed to register the birth. Under the terms of the British Nationality Act 1948 British nationals in Saint Lucia were reclassified at that time as "Citizens of the UK and Colonies" (CUKC). The basic British nationality scheme did not change overmuch, and typically those who were previously defined as British remained the same. Changes included that wives and children no longer automatically acquired the status of the husband or father, children who acquired nationality by descent no longer were required to make a retention declaration, and registrations for children born abroad were extended. In 1957, Saint Lucia revised its Civil Code to incorporate aspects of British common law which were deemed necessary for the territory to join in a federal structure with other colonies. Specifically they repealed, among other items, Chapter 1, Section 17, which required wives to have the same nationality as a spouse.
