Letters from William Tudor to Thomas Handasyd Perkins,

Four letters, with topics including the improving conditions of trade in South America, Tudor’s mining enterprise, and the activities of Simón Bolívar.

Letters from William Tudor to Thomas Handasyd Perkins,

Four letters on topics including politics in the United States, José de la Mar’s installation as president of Peru, and Tudor’s impressions of de la Mar after meeting him several times. Tudor also writes of the movements of the "atrocious conspirator & usurper" Bolívar.

Letters from Thomas Handasyd Perkins to William Tudor,

Five letters in which Perkins comments on the political landscape in the United States, the election of Andrew Jackson as president, Boston architectural and real estate developments, and the Granite Railway and granite quarries in Quincy.

Letters from William Tudor to Thomas Handasyd Perkins,

Four letters on topics including the Granite Railway project, Tudor’s thoughts on expanding trade in South America, domestic politics, and the process for appointing Americans to diplomatic posts.

Letters from Thomas Handasyd Perkins to William Tudor,

Four letters in which Perkins relays details of his travels in Europe, local gossip about friends and associates, including John Quincy Adams and Daniel Webster, news regarding developments in Boston infrastructure, and updates on the Boston Athenaeum and the Anthology Society. Other topics include domestics politics and the movements and activities of Tudor’s family members.

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.

Letter from Alexander Burton to William Tudor,

One letter offering his services as an agent to Tudor following Burton’s appointment as consul.

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.

Letter from Edward J. Coale to William Tudor,

One letter requesting Tudor forward a package of letters.

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

Letter from William Dana,

One letter requesting assistance with a claim against the Brazilian government relating to the condemned schooner Joseph Meade.