… Gilder Lehrman Center Online Documents … Gilder Lehrman Center Online Documents The … The Crisis, XVIII (May, 1919), p. 13. Du Bois, W.E.B., The Social Equality of Whites and Blacks , The Crisis, XXI … Clarke & Co., 1890, p. 59-61, 66-67. Shamrock a Symbol of Hate? Headline Courtesy of Irish Echo. July 28-August 3, …