"Outline Map of the San Bernardino City Showing Voting Precincts" (San Bernardino, CA: Produced by the Office of County Supervisor Co. Howard L. Way), 1940, Sub-Series 1.4, Box: 22, Folder: 2. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/15209 Accessed January 09, 2026.