Printed installation instructions: Carbonated stone chimneys, flues, and tops (Spear & Willis, Topeka, Kansas), Box: 1, Folder: 37. J.B. Whitaker collection, RH MS 1126. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/62375 Accessed July 13, 2025.