To Rose Ruth Morgan from Berta (17 letters), July 21 1897, August 31 1897, September 20 1897, December 22 1899, 13 undated, Box: 4, Folder: 50. 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/197211 Accessed June 02, 2024.