History of Visual Art Education (HVAE) slides including Froebel's gifts (slide box)(file list in folder 14, above), Box: 7, Box: 18. Personal Papers of Marguerite Baumgartel, PP 483. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/133881 Accessed July 26, 2024.