To Rose Ruth Morgan from C.A. Simpson (9 letters), January 9 1933, January 23 1935, May 1 1935, December 8 1935, January 8 1936, February 12 1936, November 19 1936, November 21 1939, 1 undated, Box: 5, Folder: 73. Personal Papers of Rose Ruth Morgan and Family, PP 567. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/203781 Accessed December 13, 2024.