Kenneth Spencer Research Library Archival Collections
Part of the University of Kansas. Kenneth Spencer Research Library Repository
Jules Bourquin's optical equipment, Box: 1, Folder: 12. Horton, Kansas photograph collection, RH PH 89. University of Kansas. Kenneth Spencer Research Library.
Jules Bourquin's optical equipment, Box: 1, Folder: 12. Horton, Kansas photograph collection, RH PH 89. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/473603 Accessed December 27, 2025.
