- 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.
- Resolution produced by the Commonwealth of Massachusetts that the United States Congress must abolish slavery in the District of Columbia. Includes note that the "resolves were passed by the House in the 21st, & by the Senate of the 23 March" and that the resolutions are the same that are referred to in the letters of E. Jackson and R. C. Winthrop.
- Ship manifest of "negroes, mulattoes, and persons of color taken on" the Steamer Baltimore of Washington from the port of Alexandria. Includes names of ship's Master, John Rogers, shipper J. N. Stark, collector Edward S. Hough and four slaves, Jane Diggs, Richard Diggs, Betsy Sanders and Charles Sanders.