"Humboldt County Map" (Humboldt, CA: Produced by Harry Freese), 1961, Sub-Series 1.2, Box: 3, Folder: 2. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/6711 Accessed November 15, 2024.