… Aptheker , editor, A Documentary History of the Negro People in the United States (New York, 1951), p. 715. Adams, … I, p. 474. Douglass, Frederick, Farewell to the British People Farewell Speech of Mr. Frederick Douglass, Previously … Government Printing Office, 1866. (New York: Norman Ross Publishing Inc., 1990). U.S. Bureau of the Census, …