- Manuscript copy of letter from Francis Mairez and David Cooper of Montego Bay, Jamaica, [to Samuel and William Vernon], sent via Captain George Sweet on the Brig Othello, regarding profits from slaves sold on the Vernon's behalf and other trade business. Followed by a second letter dated August 22, 1775, from Mairez and Cooper [to the Vernons] regarding their accounts current.
- 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.
- Remarks given [probably by Samuel or William Vernon] regarding a case against Captain Thomas Rogers, who is accused of producing falsified trade books and trading to his own benefit in Barbados, Cape de Verdes, St. Christopher, and Isle de Los. Document describes several instances of disregard for trade orders from the ship's owners.