It was like a scene from a bygone era, as if I had just stepped out of a time portal to the past. I had taken the two-hour drive north to Ghost Ranch for a story on artist Georgia O'Keeffe's legacy in New Mexico. When I got off the tour bus that takes visitors around the terra that O'Keeffe stomped, I spotted a group of kids heading into an alfalfa field with a wooden bat, leather baseballs and mitts.