As the Dana Family grew, they were increasingly involved with trade and politics. John Fremont stayed at Rancho Nipomo during the Mexican-American War – the conflict in which the United States gained control of California and much of the Southwest. The Dana family gave Fremont and his troops supplies for their trip to Santa Barbara. Following American annexation, Dana’s first son-in law, Henry Amos Tefft was a delegate to the state’s Constitutional Convention while many of Dana’s sons participated in local politics. By 1860, while his brothers were participating in local politics, Jose Ramon Dana was driving cattle to the San Francisco Bay area to be sold to Henry Miller – part of Miller and Lux Corporation that revolutionized the meat industry and turned it into the West Coast’s version of the factory system that was growing in New England. The children of William Goodwin and Maria Josefa Dana began subdividing the original property as they reached adulthood. William Charles Dana was the first to do so when he married Modesta Maria Castro and moved to Los Berros (meaning “the watercress”) in 1861. The two built their own adobe home that still stands today. Other Dana children built their homes closer to the original Dana Adobe. When the Pacific Coast Railway extended its route from San Luis Obispo to the Santa Ynez Valley in 1882, the company built stations in Los Berros and Nipomo. The Dana Family began selling plots of land the same year, and the town of Nipomo developed. Los Berros also had a small housing tract develop, but never grew to the same extent as its neighboring town. The introduction of transportation dramatically transformed the region. The Pacific Coast Railway enabled the movement of people and goods to and from the area during the turn of the century. Speculators planted thousands of eucalyptus trees around the Nipomo and Los Berros area, reportedly making it one of the largest stands of eucalyptus trees outside of Australia. Businessmen from Los Angeles developed quarries in Los Berros; while agriculturalists experimented with various crops around Nipomo that they shipped out of the region via railroad. These developing industries required labor. Initially immigrants from around Europe and China arrived and took up odd jobs, but by the turn of the century, racism and exclusionary immigration laws meant that Japanese immigrants were the main labor force in the Nipomo area. Federal immigration reform in 1924 essentially banned immigration into the United States, which left farmers scrambling for labor. The same decade saw the agricultural industry boom as cars became more readily available to transport goods and people, and roads along the California coast were improved. Each of which added to an increased labor need. Filipino immigrants found themselves filling the labor void, as the Philippines were a United States possession at the time and bypassed the newly created immigration laws. These immigrants worked in the fields and built the roads through Nipomo and the Central Coast, and have left a legacy still seen in the Central Coast’s Filipino community today.