Letters from Thomas Dickason & Co. to William Tudor,

Four letters regarding the "miserable" sales of Tudor’s cocoa and various financial transactions.

Letters from Thomas Dickason & Co. to William Tudor,

Four letters regarding billings, the movements of Tudor’s cargo, and sundry items Tudor ordered through the firm.

Letters from Thomas Dickason & Co. to William Tudor,

Two letters regarding bills outstanding.

Letters from Thomas & Henry Lynch & Co. to William Tudor,

Four letters regarding a shipment of fish, and market for flour and wheat. Includes one duplicate letter, and two bills of lading.

Letters from Samuel Williams to William Tudor,

Two letters, one regarding accounts related to the Birmingham nail factory, and one letter in which Williams writes of becoming naturalized and finding a wife.

Letters from Thomas Wilson to William Tudor,

Two letters regarding payment of bills.

Deposit of "Letters on the Eastern States" by William A. Mercein in the Southern District of New York,

Document certifying Mercein as proprietor legally deposited a copy of Tudor’s book. Docketed on the verso, "For value received, I transfer the within to William Tudor, Esq. William A. Mercein July 31, 1820"

Letters from James Biddle to William Tudor,

Five letters discussing the political atmosphere in South America and offering information on the Brazilian emperor and Austrian minister and news of visitors he received.

Letters from James Biddle to William Tudor,

Five letters in which Biddle discusses politics, the movements of other naval officers, and general news of friends and associates, including John Quincy Adams. In one letter he asks Tudor to use his influence to persuade the Brazilian government to release captured American seamen.

Letters from Stephen Cassin to William Tudor,

One letter inquiring about Commodore John Orde Creighton, whom Cassin was replacing as commander of the naval squadron off the coast of Brazil. One letter asking Tudor’s advice on what action to take in regard to an altercation between two Americans and a Brazilian naval officer.

Letters from Alfred Cobb to William Tudor,

Six letters reporting on communications with American merchants and naval officers, and various incidents involving American vessels. He also comments on the election of John Quincy Adams as president. Cobb includes copies of his correspodence with Lieutenant John Percival regarding the interception of Percival’s ship by Chilean Admiral Manuel Blanco Encalada.

Letters from Alfred Cobb to William Tudor,

Six letters, including copies of correspondence with Lieutenant John Percival and other officials regarding a demand for a "forced contribution" of one thousand dollars to a South American military officer. Also includes a letter and report on the condition of United States commerce in South America. Two letters are in Spanish.

Letters from John Orde Creighton to William Tudor,

Five letters on topics including General Juan Lavalle and warring factions in Buenos Aires and news of mutual friends and associates.

Letters from John Orde Creighton to William Tudor,

Six letters on topics such as the Brazilian export duty, the movements of other naval officers, and interactions with various dignitaries

Letters from John Murray Forbes to William Tudor,

Seven letters in which Forbes updates Tudor on relations between the provinces and provides introductions to various Argentinian diplomats sent to Brazil. He also includes a copy of a letter in Spanish sent to him from the Argentinian minister of war and foreign relations regarding peace negotiations with Brazil along with letters to the United States legation and Tudor regarding American involvement in light of the Monroe Doctrine.