- 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.
- Printed resolution from the General Anti-Slavery Convention, held in London between June 12 and June 23 in London, by the Committee of the British and Foreign Anti-slavery Society [later the Anti-Slavery and Aborigines Protection Society] condeming the slave trade. Signed by Society President Thomas Clarkson.
- Petition letter [from the Massachusetts Anti-Slavery Society] asking the Senate and House of Representatives of the Commonwealth of Massachusetts to protest in United States Supreme Court against the wrongful imprisonment of "colored citizens" employed on trade ships arriving at the ports of slaveholding states.