-
- Resolutions of the World's Convention
- 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] conceming the slave trade. Signed by Society President Thomas Clarkson., New-York Historical Society
-
- [Petition letter in opposition to the American Colonization Society]
- Petition denying support for the American Colonization Society, signed by William Wilberforce and 12 others in London, 1833., New-York Historical Society
-
- Boston, April 1840
- Notice from the Massachusetts Anti-Slavery Society that they will be sending delegates, William Lloyd Garrison and others, to the General Anti-Slavery Conference in London. Addressed to J. H. Tredgold at the Office of the Anti-Slavery Society [in London]., New-York Historical Society