This image shows an aerial view of "Ivorydale," the Procter & Gamble manufacturing complex in Cincinnati, Ohio, ca. 1935-1943. The sprawling campus includes factory buildings, storage facilities, smokestacks, roads, and railroad tracks. A baseball diamond is visible in the center of the image. The facility seen in the foreground center is a milling company; a sign on its twin towers reads “Union Grains.” Procter & Gamble is a multinational consumer goods company with corporate headquarters in downtown Cincinnati, Ohio. An English candle maker, William Procter, and an Irish soap maker, James Gamble, established the company on October 31, 1837. In the beginning, Procter & Gamble’s manufacturing operations were located downtown on Central Av...