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- [List of delegates from the Massachusetts Anti-Slavery Society attending the 4th anniversary of the American Anti-Slavery Society]
- Letter from Francis Jackson of the Massachusetts Anti-Slavery Society to Lewis Tappan, Samuel E. Cornish, and Simon S. Jocelyn [in New York City], listing approximately 85 members from Massachusetts who will attend the 4th anniversary of the American Anti-Slavery Society, including William Lloyd Garrison, Ellis Gray Loring, and Samuel E. Sewall., New-York Historical Society
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- A. S. Circular from the Decade meeting Dec. 1843, American A. S. Soc.
- Three-page manuscript circular letter from the American Anti-Slavery Society, soliciting donations to sustain operation of the organization., New-York Historical Society