Message from the President of the United States transmitting the correspondence of William Tudor, chargé d'affaires to Brazil, 26 September 1837

This 261-page volume is the message transmitted to Congress by President Martin Van Buren on 26 September 1837, printing the official correspondence of William Tudor during his service as United States chargé d'affaires to Brazil. It is a government publication, produced through the ordinary channels of congressional printing, and it belongs to the public record rather than to a private archive.

The correspondence dates from the decade and a half after Brazilian independence, when the Empire was consolidating its sovereignty and the United States was deepening its engagement with the newly independent American states. Tudor had previously served in Peru during the upheavals of the wars of liberation and brought that regional experience to his post in Rio de Janeiro. His exchanges, roughly 200 letters among Tudor, senior American statesmen such as Henry Clay, and Brazilian officials including the Marquis of Aracaty, record the working routine of early bilateral diplomacy.

Central themes include maritime commerce, piracy in Atlantic and Caribbean waters, blockade enforcement, and the evolving law of nations as applied to neutral shipping. A substantial portion of the letters concerns the transatlantic slave trade and the treatment of suspected slave ships, questions that sat at the intersection of British anti-slave-trade patrols, Brazilian economic realities, and American commercial interests. These passages stand as diplomatic evidence of how the trade was discussed between governments in the 1830s.

Printed in English, with Portuguese texts where the originals required, the volume preserves treaty language, ship names, commanders, and procedural detail. As an official printing it documents the early architecture of US–Brazil relations, grounded in commerce, maritime law, and mutual recognition between two American powers navigating a post-colonial Atlantic world.