Agriculture of the United States in 1860; compiled from the original returns of the eighth census, under the direction of the Secretary of Interior, by Joseph C. G. Kennedy, superintendent of census
United States. Census Office; Making of America Project; Charles E. Feinberg Collection of Walt Whitman (Library of Congress) DLC; Kennedy, J. C. G. (Joseph Camp Griffith), 1813-1887; Whitman, Walt, 1819-1892