The War Of 1812: Diplomacy On The High Seas is comprised of the following files: Letters received concerning letters of marque, 1812-1814; Letters received regarding enemy aliens, 1812-1814; Marshals' returns of enemy aliens and prisoners of war, 1812-1815; Requests for permission to sail from the United States, 1812-18l4; Passenger lists of vessels; Correspondence regarding passports, 1812-1814; Agreements for the exchange of prisoners of war, 1812-1813; Miscellaneous letters received concerning the release of prisoners, 1812-1815; Reports of William Lambert, Secret Agent, 1813; Miscellaneous intercepted correspondence, 1789-1814.