- Inventory of goods consigned to Captain George D. Sweet aboard the Brig Othello, owned by Samuel and William Vernon of Newport, Rhode Island, departing Rhode Island to the Coast of Africa. Includes instructions that read, "To insurance in London, from thence to Affrica [Africa] at and from thence to market with slaves at 8 guineas." On back, "Invoice of slops [?] sent on board," such as frocks, hats, shoes, and rum.
- Account record for the sale of 75 slaves from the cargo of the Brig Othello, sold by Captain George Dunbar Sweet for Samuel and William Vernon of [Newport], Rhode Island. Includes names of purchasers. Followed by account record for the Brig Othello to Francis Mairez and David Cooper [of Jamaica] for provisions taken on board between July 18, 1775 and August 22, 1775.
- Manuscript copy of a letter dated June 27, 1770, from Adams & Griffin of Richmond [Virginia] to William and Samuel Vernon of Newport, Rhode Island regarding remittance of payment to London merchant Thomas Adams. Followed by a letter that includes further billing from Perkins Buchanan & Brown of London and a discussion of projected agricultural markets for the upcoming fall. Adams & Griffin note that slaves "are in the greatest demand, and the first that arrive will sell at a good price."