Section 2. ― Philippine Citizenship and Naturalization

That all inhabitants of the Philippine Islands who were Spanish subjects on the eleventh day of April, eighteen hundred and ninety-nine, and then resided in said Islands, and their children born subsequent thereto, shall be deemed and held to be citizens of the Philippine Islands, except such as shall have elected to preserve their allegiance to the Crown of Spain in accordance with the provisions of the treaty of peace between the United States and Spain, signed at Paris December tenth, eighteen hundred and ninety-eight, and except such others as have since become citizens of some other country:Provided, That the Philippine Legislature, herein provided for, is hereby authorized to provide by law for the acquisition of Philippine citizenship by those natives of the Philippine Islands who do not come within the foregoing provisions, the natives of the insular possessions of the United States, and such other persons residing in the Philippine Islands who are citizens of the United States, or who could become citizens of the United States under the laws of the United States if residing therein.