Stewart Udall, an Arizona native and graduate of the University of Arizona, was arguably the most successful Interior Secretary in history. As a member of the Kennedy and Johnson cabinets, he helped create dozens of new national parks and national wildlife refuges, wrote the Endangered Species Preservation Act, and helped pass the National Trails System Act and Land and Water Conservation Fund, among other things. In Tucson alone, Udall actually spearheaded the establishment of what is now known as Saguaro National Park-West. He also was a major player in the Central Arizona Project, a reclamation project bringing water to Tucson that enabled the city to expand rapidly.