Images of America: Twentynine PalmsPres. Franklin D. Roosevelt recognized the beauty of this desert region of Southern California in 1936 when he created Joshua Tree National Monument, now a national park. But for 9,000 years, Native Americans had lived amid its monolithic rocks and strangely grotesque Joshua trees. Serrano and Chemehuevi Indians found a home at its Oasis of Mara, whose fan palms eventually gave Twentynine Palms its name. Cattleman Bill McHaney arrived in 1879, learned