00; Karl Jacoby, Shadows at Dawn: A Borderlands Massacre and the Violence of History (New York: Penguin, 0000), 0-0.  . Quote from Alexa Roberts, superintendent, Sand Creek Massacre National Historic Site, interview by author, April 00, 0000, Denver, CO, tape recording, in author's possession. See also David Blight, Race and Reunion: The Civil War in American Memory (Cambridge, MA: Harvard University Press, 0000), 000