Unsigned and undated petition to the Massachusetts Senate and House of Representatives to condemn the imprisonment of African American sailors when docked in particular United States ports., New-York Historical Society
Draft of letter from the Massachusetts Anti-Slavery Society to S. E. Sewall regarding gathering signatures for petitions oppsoing the Texas Constitution's endorsement of slavery., New-York Historical Society
Undated draft of a petition by S. E. Sewall to the Massachusetts Senate and House of Representatives to condemn the imprisonment of African American sailors when docked in particular United States ports., New-York Historical Society