The acts of March 3, 1813, section 1, (2 Stat. at Large, 809,) and March 1, 1817, section 3, (3 Stat. at Large, 351,) concerning seamen, certainly imply there may be persons of color, natives of the United States, who are not citizens of the United States. This implication is undoubtedly in accordance with the fact. For not only slaves, but free persons of color, born in some of the States, are not citizens. But there is nothing in these laws inconsistent with the citizenship of persons of color in others of the States, nor with their being citizens of the United States. Whether much or little weight should be attached to the particular phraseology of these and other laws, which were not passed with any direct reference to this subject, I consider their tendency to be, as already indicated, to show that, in the apprehension of their framers, color was not a necessary qualification of citizenship. It would be strange, if laws were found on our statute book to that effect, when, by solemn treaties, large bodies of Mexican and North American Indians as well as free colored inhabitants of Louisiana have been admitted to citizenship of the United States. In the legislative debates which preceded the admission of the State of Missouri into the Union, this question was agitated. Its result is found in the resolution of Congress, of March 5, 1821, for the admission of that State into the Union. The Constitution of Missouri, under which that State applied for admission into the Union, provided, that it should be the duty of the Legislature "to pass laws to prevent free negroes and mulattoes from coming to and settling in the State, under any pretext whatever." One ground of objection to the admission of the State under this Constitution was, that it would require the Legislature to exclude free persons of color, who would be entitled, under the second section of the fourth article of the Constitution, not only to come within the State, but to enjoy there the privileges and immunities of citizens. The resolution of Congress admitting the State was upon the fundamental condition, "that the Constitution of Missouri shall never be construed to authorize the passage of any law, and that no law shall be passed in conformity thereto, by which any citizen of either of the States of this Union shall be excluded from the enjoyment of any of the privileges and immunities to which such citizen is entitled under the Constitution of the United States." It is true, that neither this legislative declaration, nor anything in the Constitution or laws of Missouri, could confer or take away any privilege or immunity granted by the Constitution. But it is also true, that it expresses the then conviction of the legislative power of the United States, that free negroes, as citizens of some of the States, might be entitled to the privileges and immunities of citizens in all the States. The conclusions at which I have arrived on this part of the case are: