Udall was 29 when he was called upon by Brigham Young in 1880 to lead 50 Mormon families to Northeast Arizona, where they founded the town of St. Johns. His group was one of many that came here starting in the 1870s. Mormons established Pinetop, Show Low, Mesa, Safford, Thatcher and St. David, among others. By 1890, the census showed 6,500 Mormons in the territory. Mormons were admired for their hard work and community-building, including the opening of many schools. There also was hostility toward them, though, for the polygamist practices of some members, Udall among them. That eased after the church officially abandoned polygamy in 1890. Udall and his two wives had 18 children. Two became Arizona Supreme Court justices, one a state legislator and one a mayor of Phoenix. The next generation included three mayors and two U.S. congressmen — Stewart and Morris. The current generation includes two U.S. senators — Tom and Mark.