Lincoln Grade School and Remodeled Heating Plant, Leavenworth Junior High and Remodeled Heating Plant, Broadway School and New Heating Plant, Third Ave. School and Addition to Howard Wilson School, All in - Leavenworth, KS, 1950, tube: 373. Thomas Williamson architectural collection, RH AD 6. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/214875 Accessed May 20, 2024.