W.E.B. du Bois materials: Speeches and talks on du Bois by Dr. Tuttle, Box: 4, Folder: 57. William Tuttle's research and teaching in African American history and the history of racial violence in 20th century America, RH MS 1472. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/388349 Accessed November 27, 2024.