An Oasis of Liberty in the Arizona Sun

As a boy, Barry Goldwater Jr., son of the former senator and 1964 Republican presidential nominee, would step out of his father’s house and shoot at tin cans 50 yards away. Now 78, he says he could fire in any direction and not endanger “anything but a cactus.” His father, born in 1909 in Arizona territory, three years before statehood, built the house on a bluff where, as an adolescent, he rode his horse there and slept under the stars. There were about 30,000 people in Phoenix.

The house is now in the nation’s 12th-largest metropolitan area (about 4.6 million). Arizona’s population, which wa...