Sheppard, William L. "African Americans Slaves Using the First Cotton-Gin, 1790-1800." Illustration. Harper's Weekly, 18 December 1869, p. 813. Description: The illustration depicts African American slaves operating the Roller Cotton Gin, with historical context from 70 years earlier. Collection: Library of Congress, Call Number: Illus. in AP2.H32 Case Y [P&P], Reproduction number: LC-USZ62-103801 (b&w film copy neg.). Source: United States Library of Congress's Prints and Photographs division, digital ID cph.3c03801.