Langston, Charles (1817-1892) and Mary (1836-1915), Feb 2002, 2004, 2007/2008, Box: 2, Folder: 46. Katie Armitage research on African Americans in Douglas County, Kansas, RH MS 1390. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/256254 Accessed April 29, 2024.