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- The Problem of the Free Negroes. A few thoughts upon the proposed solution of it.
- Unsigned and undated six-page memorandum in support of slave colonization in Liberia., New-York Historical Society
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- [Advertisement for Mathew Carey's testimony of the Colonization Society]
- Two-page printed advertisement by Mathew Carey of Philadelphia, promoting this written testimony on the Colonization Society and its activities in Liberia., New-York Historical Society