CORNELIUS AND MERCEDES JENSON RANCH
Danish sea captain Cornelius Jensen sailed to San Francisco during the Gold Rush to sell his cargo. In 1854 he settled in Agua Mansa, established a store, and married Mercedes Alvarado, a descendant of a pioneer Californio family. The Jensens purchased this ranch in 1865 and began planting vineyards and orchards. They used local materials to build their house which is of Danish vernacular design. The Jensens made this ranch an important civic, social, business, and agricultural center.