The question of the constitutionality of the formation of the new state was brought before the Supreme Court of the United States in the following manner.
The status of the Isle of Pines was left an open question by the treaty of Paris, but a decision of the Supreme Court of the United States has declared it (in a question of customs duties) to be a part of Cuba, and though a treaty to the same end did not secure ratification (1908) by the United States Senate, repeated efforts by American residents thereon to secure annexation to the United States were ignored by the United States government.
In this office in 1863 he won before the Supreme Court of the United States the famous prize case of the "Amy Warwick," on the decision in which depended the right of the government to blockade the Confederate ports, without giving the Confederate states an international status as belligerents.
After serving in the Maryland convention which ratified for that state the Federal Constitution, and there vigorously opposing ratification, though afterwards he was an ardent Federalist, he became in 1791 chief judge of the Maryland general court, which position he resigned in 1796 for that of an associate justice of the Supreme Court of the United States.
The final step in the determination of the present boundaries of the state was taken in 1896, when the Supreme Court of the United States decided the Greer county case.