1941 Map of Sierra Madre

Transit networks define the era, with the Pacific Electric lines and the Atchison Topeka and Santa Fe railroad providing vital connections between established citrus-growing communities. Residential patterns are visible through family-named sites like Kinneloa Ranch and mountain retreats such as Henninger Flats and Orchard Camp. The map also captures local civic life at Flintridge Sch and the Woodrow Wilson School, showing the footprint of Arcadia, Sierra Madre, and Monrovia before the post-war housing boom.