British subject
By this definition, anyone born in Hong Kong after it became a British colony in 1842 was a British subject. The Naturalisation of Aliens Act 1847 expanded what had been covered in the Naturalisation Act 1844, which applied only to people within the United Kingdom, to all its dominions and colonies. The Act made provisions for naturalisation as well as allowing for acquisition of British subject status by marriage between a foreign woman and a man with British subject status.