Page 27 has table showing number of slaves in the U.S. according to the U.S. Census of 1820.
Goldsmiths'-Kress no. 23661.
Reproduction of the original from the Goldsmiths' Library, University of London. Reproduced courtesy of World Microfilms Publications.
Electronic reproduction. Farmington Hills, Mich. : Gale, 2009. Available via the World Wide Web. Access limited by licensing agreements.