NAACP--certificate of Life Membership plaque [removed from RH MS 760 box 11: miscellaneous organizations, 1959-1997], Box: 6, Folder: 3. Elmer C. Jackson papers, RH MS 410. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/279916 Accessed October 14, 2024.