Anyone who walked or ran on the famous Central Park Reservoir running track in New York would see him. They called him the Mayor of Central Park, and he claimed to be the first person to jog around the reservoir when there was just a little path. Since 1937, Alberto Arroyo was there every day, and when he retired he was often there the entire day, waving and saying hello to everyone. When he couldn't run, he walked. Then he used a cane, then a walker, and finally, after a stroke, a wheelchair. Arroyo died last month at 94.