"The Thinkers," "Narcissus," "Whistler's Mother," "Jack Spratt," "Capital Punishment," and "Glenn on the Scales", 1979 - 1980, Box: 1, Folder: 41. Lynn Bretz collection of Elizabeth Layton and Asa Converse materials, RH MS 1541. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/493888 Accessed November 24, 2024.